21002510

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29581}}^1$

素因数の和:29659

約数の個数: 16

約数和(自身を含む): 38338272

約数和(自身を除く): 17335762

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 29581, 59162, 147905, 295810, 2100251, 4200502, 10501255, 21002510]

約数ペア:

[(1, 21002510), (2, 10501255), (5, 4200502), (10, 2100251), (71, 295810), (142, 147905), (355, 59162), (710, 29581)]