Factors / Factors of 489

Factors of 489

1, 3, 163, 489

489 breaks into 2 pairs, tested up to √489 ≈ 22.1; each pair multiplies back to 489 exactly. 489's full pair list is (1, 489), (3, 163), for 4 divisors in total. 489's divisors other than 489 itself sum to just 167, 322 below 489: the common deficient case. 489 is odd, digit sum 21 for 489; small divisors of 489 include 3. 489 has 4 divisors; 488 has 8 and 490 has 12, so 490 wins here. 489 divided by its largest divisor, 163, gives 3.