func_code_string: #include <bits/stdc++.h>   using namespace std;   int main(void) {     int n;     cin >> n;     long long ans = n;     for (int i = 2; i * i <= n; ++i)       if (n % i == 0) {         while (n % i == 0) n /= i, ans += n;       }     if (n > 1) ++ans;     cout << ans << endl;     return 0;   }   