开long long!!!!

#include<bits/stdc++.h>
#define int long long
using namespace std;
signed main()
{
    int n;
    cin >> n;
    while (n--)
    {
        int x;
        cin >> x;
        int aw = x;
        for (int i = 2; i <= x / i; i++)
        {
            if (x % i == 0)
            {
                aw = aw * (i - 1) / i;
                while (x % i == 0)x /= i;
            }
        }
        if (x - 1)aw = aw * (x - 1) / x;
        cout << aw << endl;
    }
    return 0;
}