#include<bits/stdc++.h>
#define taskname "power"
using namespace std;
map <int,int> mp;
int main()
{
    if(fopen(taskname".inp","r"))
    {
        freopen(taskname".inp","r",stdin);
        freopen(taskname".out","w",stdout);
    }
    ios_base::sync_with_stdio();
    cin.tie(0);
    cout.tie(0);
    long long n;
    cin>>n;
    int i=2;
    while (n>1)
    {
        if (n%i==0)
        {
            n=n/i;
            mp[i]++;

        }
        else
        {
            i++;

        }

    }
    long long tich=1;
    for(int k=1; k<=i; k++)
        if(mp[k]!=0)
        {
           tich=tich*k;
        }
 for(int k=1; k<=i; k++)
    if((mp[k]!=0) &&(tich<mp[k]))
        {
            tich=tich*pow(k,mp[k]-tich);

      }
    cout<<tich;
    return 0;
}
#baoduy123