#include "bits/stdc++.h"
using namespace std;
#define fastcin {\
    cin.tie(0);\
    ios::sync_with_stdio(false);\
}
#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 print(x) cout << x << "\n"
#define SORT(a, n) sort(a, a+n);
#define REVERSE(a,n) reverse(a,a+n);
#define VSORT(v) sort(v.begin(), v.end());
#define VREVERSE(v) reverse(v.begin(), v.end());
#define MOD 1000000007
#define yes "YES"
#define no "NO"
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<ll> vll;

int main() {
    fastcin;
    ll n;
    int h, ans = 0;
    cin >> n;
    h = sqrt(n);
    int f = 0;
    rep(i, 1, h+1) {
        if(n%i==0) {
            ans++;
            int p = i*i;
            int e = 1;
            rep(j, 0, 11) {
                if(p*e==n) {
                    f++;
                    break;
                }
                e = e*10 + 1;
            }
        }
    }
    ans *= 2;
    if(f!=0) ans -= f;
    print(ans);
    return 0;
}