Factors / Factors of 273

Factors of 273

1, 3, 7, 13, 21, 39, 91, 273

273 breaks into 4 pairs, tested up to √273 ≈ 16.5; each pair multiplies back to 273 exactly. 273's full pair list is (1, 273), (3, 91), (7, 39), (13, 21), for 8 divisors in total. 273's divisors other than 273 itself sum to just 175, 98 below 273: the common deficient case. 273 is odd, digit sum 12 for 273; small divisors of 273 include 3, 7. 273 has 8 divisors; 272 has 10 and 274 has 4, so 272 wins here. 273 divided by its largest divisor, 91, gives 3.