#include //#include //#pragma GCC optimize("O3") using namespace std; #define reps(i,s,n) for(int i = s; i < n; i++) #define rep(i,n) reps(i,0,n) #define Rreps(i,n,e) for(int i = n - 1; i >= e; --i) #define Rrep(i,n) Rreps(i,n,0) #define ALL(a) a.begin(), a.end() #define fi first #define se second using ll = long long; using vec = vector; using mat = vector; ll N,M,H,W,Q,K,A,B; string S; typedef pair P; const ll INF = (1LL<<48); template class modint{ public: ll x; constexpr modint(){x = 0;} constexpr modint(ll _x) : x((_x < 0 ? ((_x += (LLONG_MAX / mod) * mod) < 0 ? _x + (LLONG_MAX / mod) * mod : _x) : _x)%mod){} constexpr modint set_raw(ll _x){ //_x in [0, mod) x = _x; return *this; } constexpr modint operator-(){ return x == 0 ? 0 : mod - x; } constexpr modint& operator+=(const modint& a){ if((x += a.x) >= mod) x -= mod; return *this; } constexpr modint operator+(const modint& a) const{ return modint(*this) += a; } constexpr modint& operator-=(const modint& a){ if((x -= a.x) < 0) x += mod; return *this; } constexpr modint operator-(const modint& a) const{ return modint(*this) -= a; } constexpr modint& operator*=(const modint& a){ (x *= a.x)%=mod; return *this; } constexpr modint operator*(const modint& a) const{ return modint(*this) *= a; } constexpr modint pow(unsigned long long pw) const{ modint res(1), comp(*this); while(pw){ if(pw&1) res *= comp; comp *= comp; pw >>= 1; } return res; } //以下、modが素数のときのみ constexpr modint inv() const{ if(x == 2) return (mod + 1) >> 1; return modint(*this).pow(mod - 2); } constexpr modint& operator/=(const modint &a){ (x *= a.inv().x)%=mod; return *this; } constexpr modint operator/(const modint &a) const{ return modint(*this) /= a; } }; #define mod2 1000000007 using mint = modint; ostream& operator<<(ostream& os, const mint& a){ os << a.x; return os; } using vm = vector; const ll MAX_N = ll(1e+6) + 10; vm fact(MAX_N, mint(1)), fact_inv(MAX_N, mint(1)), n_inv(MAX_N, mint(1)); void makefact(){ mint tmp; reps(i,2,MAX_N) fact[i] = fact[i-1] * tmp.set_raw(i); fact_inv[MAX_N - 1] = fact[MAX_N - 1].inv(); Rreps(i, MAX_N - 1, 1){ fact_inv[i] = fact_inv[i + 1] * tmp.set_raw(i + 1); n_inv[i + 1] = fact[i] * fact_inv[i + 1]; } } mint nCm(ll n, ll m){ return fact[n] * fact_inv[n-m] * fact_inv[m]; } mint nCm_inv(ll n, ll m){ return fact[n-m] * fact[m] * fact_inv[n]; } int main() { makefact(); cin>>N>>K>>M; mint one(0); reps(i, 1, N + 1){ if(K%i == 0){ one += fact[N - 1] * fact_inv[N - i] * mint(N).pow(N - i); } } if(M == 1){ cout<