Factors / Factors of 495

Factors of 495

1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495

495 breaks into 6 pairs, tested up to √495 ≈ 22.2; each pair multiplies back to 495 exactly. 495's full pair list is (1, 495), (3, 165), (5, 99), (9, 55), (11, 45), (15, 33), for 12 divisors in total. 495's divisors other than 495 itself sum to just 441, 54 below 495: the common deficient case. 495 is odd, digit sum 18 for 495; small divisors of 495 include 3, 5, 9, 11. 495 has 12 divisors; 494 has 8 and 496 has 10, so 495 wins here. 495 divided by its largest divisor, 165, gives 3.