Factors / Factors of 23

Factors of 23

1, 23

23 is prime: only factor pair is (1, 23), confirmed by trial division up to √23 ≈ 4.8 turning up nothing else. 23's full pair list is (1, 23), for 2 divisors in total. 23's divisors other than 23 itself sum to just 1, 22 below 23: the common deficient case. 23 is odd, digit sum 5 for 23; none of 2-12 divide 23 evenly. 23 has 2 divisors; 22 has 4 and 24 has 8, so 24 wins here. 23 divided by its largest divisor, 1, gives 23.