sim642

public class Ch5_q7 {
	public static void main(String[] args) {
		int[] mateArray = new int[21];
		int counter = 1, starter = 1;
		mateArray[0] = 0;
 		while (counter < 21) {
			if (starter != dividerSum(starter) && starter == dividerSum(dividerSum(starter))) {
				if  (starter != mateArray[counter-1]) {
				mateArray[counter] = starter;
				mateArray[counter+1] = dividerSum(starter);