#include <cstdio>
#include <algorithm>
#include <cstring>
using namespace std;
int cal(int x){
    int ans=0;
    while (x){
        ans+=x%10;
        x/=10;
    }
    return ans;
}
int cas,n,cnt,ans[1010];
int main(){
    scanf("%d",&cas);
    while (cas--){
        cnt=0;
        scanf("%d",&n);
        int m=cal(n);
        for (int i=1;i<=m;i++)
            if (m%i==0&&n%i==0)ans[++cnt]=i;
        printf("%d\n",cnt);
        for (int i=1;i<cnt;i++)printf("%d ",ans[i]);printf("%d\n",ans[cnt]);
    }
}