Factors / Factors of 389

Factors of 389

1, 389

389 is prime: only factor pair is (1, 389), confirmed by trial division up to √389 ≈ 19.7 turning up nothing else. 389's full pair list is (1, 389), for 2 divisors in total. 389's divisors other than 389 itself sum to just 1, 388 below 389: the common deficient case. 389 is odd, digit sum 20 for 389; none of 2-12 divide 389 evenly. 389 has 2 divisors; 388 has 6 and 390 has 16, so 390 wins here. 389 divided by its largest divisor, 1, gives 389.