18821290

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{64901}}^1$

素因数の和:64937

約数の個数: 16

約数和(自身を含む): 35047080

約数和(自身を除く): 16225790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 64901, 129802, 324505, 649010, 1882129, 3764258, 9410645, 18821290]

約数ペア:

[(1, 18821290), (2, 9410645), (5, 3764258), (10, 1882129), (29, 649010), (58, 324505), (145, 129802), (290, 64901)]