Factors / Factors of 549

Factors of 549

1, 3, 9, 61, 183, 549

549 breaks into 3 pairs, tested up to √549 ≈ 23.4; each pair multiplies back to 549 exactly. 549's full pair list is (1, 549), (3, 183), (9, 61), for 6 divisors in total. 549's divisors other than 549 itself sum to just 257, 292 below 549: the common deficient case. 549 is odd, digit sum 18 for 549; small divisors of 549 include 3, 9. 549 has 6 divisors; 548 has 6 and 550 has 12, so 550 wins here. 549 divided by its largest divisor, 183, gives 3.