#include <bits/stdc++.h>
using namespace std;

int main(){
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    uint32_t N;
    cin >> N;
    uint32_t ans = 1;
    while(N % 2 == 0) N /= 2;
    for(uint32_t i = 3; i <= 447; i += 2){
        if(N % i) continue;
        if(i % 4 == 3) do N /= i; while(N % i == 0);
        uint32_t cnt = 1;
        do{
            N /= i;
            cnt += 2;
        }while(N % i == 0);
        ans *= cnt;
    }
    if(N > 1 && N % 4 == 1) ans *= 3;
    cout << ans - 1 << endl;
}