import java.lang.Math;

public class PerfectNumber{
	

public static void main (String[] args){

long a = 1; //Ausgabe
long zw1 = 0; //Zwischenrechnung
long zw2 = 0; //Zwischenrechnung

int i = 2; //Schleife
int j = 1; //Schleife


System.out.println("5 Perfect Numeros.");



while (i < 14){
	
		if (i == 2 || i == 3 || i == 5 || i == 7 || i == 13 ){
			
		System.out.println();
	
		zw1 = (long) Math.pow(2,(i-1));
		
		zw2 =  (long) Math.pow(2,i);
		
		a = zw1 * (zw2-1);


		System.out.print( a + " = ");
	
		
	for (j = 1; j < a/2+1; j++){

		if (a % j == 0){
			if(j == a/2){
				System.out.print(j);
			}
			else {
				System.out.print(j + " + ");
				}
	
			}
	}
}
	i ++;
}

}

}