21298028

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{457}}^1$

素因数の和:713

約数の個数: 24

約数和(自身を含む): 38164224

約数和(自身を除く): 16866196

約数列:

[1, 2, 4, 61, 122, 191, 244, 382, 457, 764, 914, 1828, 11651, 23302, 27877, 46604, 55754, 87287, 111508, 174574, 349148, 5324507, 10649014, 21298028]

約数ペア:

[(1, 21298028), (2, 10649014), (4, 5324507), (61, 349148), (122, 174574), (191, 111508), (244, 87287), (382, 55754), (457, 46604), (764, 27877), (914, 23302), (1828, 11651)]