#include <iostream>
using namespace std;
int main()
{
int a;
while (cin >> a){
int sum = 0, i=2;
while (a>=i){
if (a%i==0){
sum += i;
a = a/i;
}
else {
i++;
}
}
cout << sum << endl;
}
return 0;
}
while (a>=i){
做到平方根就好
while (a>=i){
做到平方根就好
又是你😂
謝啦