#include <iostream>
using namespace std;
int n,d,putere;
int main()
{
    cin>>n;
    while(n%2==0)
    {
        n=n/2;
        putere++;
    }
    if(putere>0)
        cout<<2<<" "<<putere<<endl;
    d=3;
    while(n>1)
    {
        putere=0;
        while(n%d==0)
        {
            n=n/d;
            putere++;
        }
        if(putere>0)
            cout<<d<<" "<<putere<<endl;
        if(d*d>n)
            d=n;
        else
            d=d+2;
    }
    return 0;
}