Factors / Factors of 529

Factors of 529

1, 23, 529

529 is a perfect square (23² = 529); that gives 529 an odd 3-divisor count, since only 23 pairs with itself. 529's full pair list is (1, 529), (23, 23), for 3 divisors in total. 529's divisors other than 529 itself sum to just 24, 505 below 529: the common deficient case. 529 is odd, digit sum 16 for 529; none of 2-12 divide 529 evenly. 529 has 3 divisors; 528 has 20 and 530 has 8, so 528 wins here. 529 divided by its largest divisor, 23, gives 23.