19411664

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{19889}}^1$

素因数の和:19958

約数の個数: 20

約数和(自身を含む): 38228580

約数和(自身を除く): 18816916

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 19889, 39778, 79556, 159112, 318224, 1213229, 2426458, 4852916, 9705832, 19411664]

約数ペア:

[(1, 19411664), (2, 9705832), (4, 4852916), (8, 2426458), (16, 1213229), (61, 318224), (122, 159112), (244, 79556), (488, 39778), (976, 19889)]