19729352

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{40429}}^1$

素因数の和:40496

約数の個数: 16

約数和(自身を含む): 37599900

約数和(自身を除く): 17870548

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 40429, 80858, 161716, 323432, 2466169, 4932338, 9864676, 19729352]

約数ペア:

[(1, 19729352), (2, 9864676), (4, 4932338), (8, 2466169), (61, 323432), (122, 161716), (244, 80858), (488, 40429)]