21116153816

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{43270807}}^1$

素因数の和:43270874

約数の個数: 16

約数和(自身を含む): 40241851440

約数和(自身を除く): 19125697624

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 43270807, 86541614, 173083228, 346166456, 2639519227, 5279038454, 10558076908, 21116153816]

約数ペア:

[(1, 21116153816), (2, 10558076908), (4, 5279038454), (8, 2639519227), (61, 346166456), (122, 173083228), (244, 86541614), (488, 43270807)]