Hi guys, I wrote up a long program that pretty much works. What it does is when the user enters a string like 4,100 the program prints out all the prime,perfect and amicable pairs in that range.

Trouble is, I got the prime and perfect numbers to work but I'm having a bit of difficulty getting the amicable pairs.

Here is part of the code in main where the numbers from the user gets passed to the findAmicable method.

Code:

while (1) {
printf("Enter a command: ");
fgets(command, sizeof(command), stdin);
command[strlen(command) - 1] = '\0';
if (sscanf(command, "%d,%d", &A, &B) == 2) {
int i;
for (i = A; i < B; i++) {
findAmicable(i);
}
}
}

And here is the sum of the factors method and the findAmicable methods:

Code:

int sumDiv(int number) {
int i;
int sum = 0;
for (i = 1; i <= number; i++) {
if(number % i == 0)
sum += i;
}
return sum;
}
void findAmicable (int number) {
int i;
int j;
for (i = 1; i <= number; i++) {
for (j = 1; j >= number; j--) {
if ((sumDiv(i) == j) && (sumDiv(j) == i) &&(i!=j)) {
printf("%d and %d are amicable numbers. \n", i, j);
}
}
}
}

Help please? I don't know where the code is wrong.