#include<cstdio>
#include<algorithm>
#include<cmath>
using namespace std;
int n,m,k,l,T,s;
int ans[100005];
int main(){
    scanf("%d",&T);
    while(T--){
        s=0;
        scanf("%d",&n);
        int x=n,sum=0;
        while(x){sum+=x%10;x/=10;}
        for (int i=1;i*i<=sum;i++)if(sum%i==0){
            if(n%i==0)ans[++s]=i;
            if(i*i!=sum&&n%(sum/i)==0)ans[++s]=sum/i;
        }
        sort(ans+1,ans+s+1);
        printf("%d\n",s);
        for (int i=1;i<s;i++)printf("%d ",ans[i]);
        printf("%d\n",ans[s]);
    }
}