#include<bits/stdc++.h> 
#define For(i,j,k) for (int i=(int)(j);i<=(int)(k);i++)
#define Rep(i,j,k) for (int i=(int)(j);i>=(int)(k);i--)
#define pii pair<int,int>
#define pll pair<ll,ll>
#define ll long long
#define fi first
#define se second
#define PB push_back
#define uint unsigned
#define ull unsigned ll 
using namespace std;

void solve(){
    int n;
    scanf("%d",&n);
    int nn=n,s=0,cnt=0;
    for (;nn;s+=nn%10,nn/=10);
    For(i,1,s) if (s%i==0&&n%i==0) ++cnt;
    printf("%d\n",cnt);
    For(i,1,s) if (s%i==0&&n%i==0) printf("%d%c",i,(--cnt==0?'\n':' '));
} 
int main(){
    int T;
    scanf("%d",&T);
    while (T--) solve();
}