Factors / Factors of 249

Factors of 249

1, 3, 83, 249

249 breaks into 2 pairs, tested up to √249 ≈ 15.8; each pair multiplies back to 249 exactly. 249's full pair list is (1, 249), (3, 83), for 4 divisors in total. 249's divisors other than 249 itself sum to just 87, 162 below 249: the common deficient case. 249 is odd, digit sum 15 for 249; small divisors of 249 include 3. 249 has 4 divisors; 248 has 8 and 250 has 8, so 248 wins here. 249 divided by its largest divisor, 83, gives 3.