问怎么可能我的int数组没有被正确初始化

EN

#include <stdio.h>

int* dividers_of(int number){
     int dividers [number];
     dividers[0]=1;
     int *ptr=dividers;
     int i;
     for(i=2;i<number;i++){
           if(number%i==0){
                  dividers[i]=i;
                  printf("deler : %i\n",dividers[i]);
           } else{
                  dividers[i]=0;
                  printf("niet- deler : %i\n",i);
           }
     }
     return ptr;
}

int number_dividers(int* ptr,int length){
    int * runner = ptr;
    int number_dividers ;
    while(runner!=ptr+length){
                    printf("element %i\n",*runner);
                        if(*runner!=0){
                                      number_dividers++;
                        }
                 runner++;
                 }
    return number_dividers;
}