#include <bits/stdc++.h>

using namespace std;
#define rep(i,n) for (int i = 0; i < (int)(n); ++i)
#define rrep(i,n) for (int i = (int)(n-1); i >= 0; --i)
#define Rep(i,a,b) for (int i = a; i < b; ++i)
#define rRep(i,a,b) for (int i = a; i > b; --i)
#define fore(i,a) for(auto &i:a)
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
#define Bit(x,i) (((x)>>(i))&1)
using ll = long long;
using vi = vector<int>;
using vll = vector<long long>;
using vvi = vector<vi>;
using vvll = vector<vll>;
using vb = vector<bool>;
using vs = vector<string>;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }
struct settings{settings(){ios_base::sync_with_stdio(0); cin.tie(0); cout<<fixed<<setprecision(15);};}settingss;
const double PI = acos(-1);
const int INF = 1001001001;
const ll LINF = 1001001001001001001LL;

const int mod = 1000000007;
class modint {
  long long x;
public:
  modint(long long x=0) : x((x%mod+mod)%mod) {}
  modint operator-() const {
    return modint(-x);
  }
  modint& operator+=(const modint& a) {
    if ((x += a.x) >= mod) x -= mod;
    return *this;
  }
  modint& operator-=(const modint& a) {
    if ((x += mod-a.x) >= mod) x -= mod;
    return *this;
  }
  modint& operator*=(const  modint& a) {
    (x *= a.x) %= mod;
    return *this;
  }
  modint operator+(const modint& a) const {
    modint res(*this);
    return res+=a;
  }
  modint operator-(const modint& a) const {
    modint res(*this);
    return res-=a;
  }
  modint operator*(const modint& a) const {
    modint res(*this);
    return res*=a;
  }
  modint pow(ll t) const {
    if (!t) return 1;
    modint a = pow(t>>1);
    a *= a;
    if (t&1) a *= *this;
    return a;
  }
  modint inv() const {
    return pow(mod-2);
  }
  modint& operator/=(const modint& a) {
    return (*this) *= a.inv();
  }
  modint operator/(const modint& a) const {
    modint res(*this);
    return res/=a;
  }
  friend ostream& operator<<(ostream& os, const modint& m){
    os << m.x;
    return os;
  }
};

const int MAX = 1000010;
long long fac[MAX], finv[MAX], inv[MAX];
void NCKinit() {
  fac[0] = fac[1] = 1;
  finv[0] = finv[1] = 1;
  inv[1] = 1;
  for (int i = 2; i < MAX; i++) {
    fac[i] = fac[i - 1] * i % mod;
    inv[i] = mod - inv[mod%i] * (mod / i) % mod;
    finv[i] = finv[i - 1] * inv[i] % mod;
  }
}
long long NCK(int n, int k) {
  if (n < k) return 0;
  if (n < 0 || k < 0) return 0;
  return fac[n] * (finv[k] * finv[n - k] % mod) % mod;
}

ll powmod(ll n, ll p, ll m) {
  if(p == 0) return 1;
  ll res = powmod(n, p/2, m);
  n %= m;
  if(p%2 == 0) return (res*res) % m;
  return (((res*res) % m)*n) % m;
}

int main() {
  ll N, K, M; cin >> N >> K >> M;
  modint ans = 0;
  if(M == 1) {
    ans += powmod(N, N-1, mod);
    Rep(i, 2, min(N, K+1)+1) {
      // ちょうどループ
      if(K%i != 0) continue;
      modint tmp = fac[i-2];
      tmp *= NCK(N-2, i-2);
      if(i-2 == 0) tmp = 1;
      tmp *= powmod(N, N-i, mod);
      ans += tmp;
    }
    cout << ans << endl;
    return 0;
  }
  NCKinit();
  Rep(i, 2, min(N, K+1)+1) {
    // ちょうどループ
    if(K%i != 0) {
      modint tmp = fac[i-2];
      tmp *= NCK(N-2, i-2);
      if(i-2 == 0) tmp = 1;
      tmp *= powmod(N, N-i, mod);
      ans += tmp;
    }
    // ほか
    modint tmp = fac[i-2];
    tmp *= NCK(N-2, i-2);
    if(i-2 == 0) tmp = 1;
    tmp *= i-1;
    tmp *= powmod(N, N-i, mod);
    ans += tmp;
  }
  cout << ans << endl;
}