21004652

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{1447}}^1$

素因数の和:1661

約数の個数: 24

約数和(自身を含む): 38922240

約数和(自身を除く): 17917588

約数列:

[1, 2, 4, 19, 38, 76, 191, 382, 764, 1447, 2894, 3629, 5788, 7258, 14516, 27493, 54986, 109972, 276377, 552754, 1105508, 5251163, 10502326, 21004652]

約数ペア:

[(1, 21004652), (2, 10502326), (4, 5251163), (19, 1105508), (38, 552754), (76, 276377), (191, 109972), (382, 54986), (764, 27493), (1447, 14516), (2894, 7258), (3629, 5788)]