Find all divisors and add them
i = 2 ; NEW_LINE while ( i * i < n ) : NEW_LINE INDENT if ( n % i == 0 ) : NEW_LINE INDENT if ( i * i != n ) : NEW_LINE INDENT sum = sum + i + n / i ; NEW_LINE DEDENT else : NEW_LINE INDENT sum = sum + i ; NEW_LINE DEDENT DEDENT i += 1 ; NEW_LINE DEDENT