21222086

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{7901}}^1$

素因数の和:7999

約数の個数: 16

約数和(自身を含む): 34136640

約数和(自身を除く): 12914554

約数列:

[1, 2, 17, 34, 79, 158, 1343, 2686, 7901, 15802, 134317, 268634, 624179, 1248358, 10611043, 21222086]

約数ペア:

[(1, 21222086), (2, 10611043), (17, 1248358), (34, 624179), (79, 268634), (158, 134317), (1343, 15802), (2686, 7901)]