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

int main() {
    ll n;
    std::cin >> n;
    map<ll,ll> e;
    for (int i = 2; i <= sqrt(n); i++) {
        while(n%i==0){
            e[i]++;
            n/=i;
        }
    }
    if(n!=1){
        e[n]++;
    }
    vector<ll> res;
    for (auto ee : e) {
        ll tmp = 0;
        for (int i = 0; i <= ee.second; i++) {
            tmp += pow(ee.first,i);
        }
        res.push_back(tmp);
    }
    ll ans = 1;
    for (auto ee : res) {
        ans *= ee;
    }
    std::cout << ans << std::endl;
}