18501788

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{397}}^1$

素因数の和:653

約数の個数: 24

約数和(自身を含む): 33164544

約数和(自身を除く): 14662756

約数列:

[1, 2, 4, 61, 122, 191, 244, 382, 397, 764, 794, 1588, 11651, 23302, 24217, 46604, 48434, 75827, 96868, 151654, 303308, 4625447, 9250894, 18501788]

約数ペア:

[(1, 18501788), (2, 9250894), (4, 4625447), (61, 303308), (122, 151654), (191, 96868), (244, 75827), (382, 48434), (397, 46604), (764, 24217), (794, 23302), (1588, 11651)]