1 #include<iostream>
 2 #include<cstring>
 3 #include<cstdio>
 4 #include<map>
 5 #include<set>
 6 #include<vector>
 7 #include<algorithm>
 8 #include<cmath> 
 9 using namespace std;
10 #define LL long long 
11 #define PI acos(-1.0)
12 LL thr[66]={1};
13 int gcd(int a,int b){
14     return b==0?a:gcd(b,a%b);
15 }
16 int main()
17 {
18     LL n,i,j;
19     for(i=1;i<=40;++i) thr[i]=thr[i-1]*3;
20     while(cin>>n){
21         if(n==-1)break;
22         if(n==0){
23             puts("0");
24             continue;
25         }
26         LL ans=0;
27         for(i=1;i<=n;++i){
28             ans+=thr[gcd(i,n)];
29         }
30         if(n%2==0){
31             ans=ans+thr[n/2]*(n/2);
32             ans=ans+thr[n/2+1]*(n/2);
33         }
34         else{
35             ans=ans+thr[n/2+1]*n;
36         }
37         ans=ans/2;
38         ans=ans/n;
39         cout<<ans<<endl;
40     }
41     return 0;
42 }