#include<bits/stdc++.h>
using namespace std;

int n;

void Solve()
{
    int cs=0,k=n,c=0;
    while(k)cs+=k%10,k/=10;
    for(int i=1;i<=cs;i++)if(cs%i==0 and n%i==0)c++;
    printf("%d\n",c);
    for(int i=1;i<=cs;i++)if(cs%i==0 and n%i==0)c--,printf("%d%c",i," \n"[c==0]);
}

int main()
{
    int T;scanf("%d",&T);
    while(T--)scanf("%d",&n),Solve();
    return 0;
}