21691352

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{38189}}^1$

素因数の和:38266

約数の個数: 16

約数和(自身を含む): 41245200

約数和(自身を除く): 19553848

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 38189, 76378, 152756, 305512, 2711419, 5422838, 10845676, 21691352]

約数ペア:

[(1, 21691352), (2, 10845676), (4, 5422838), (8, 2711419), (71, 305512), (142, 152756), (284, 76378), (568, 38189)]