21404708

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{3847}}^1$

素因数の和:3971

約数の個数: 24

約数和(自身を含む): 40727232

約数和(自身を除く): 19322524

約数列:

[1, 2, 4, 13, 26, 52, 107, 214, 428, 1391, 2782, 3847, 5564, 7694, 15388, 50011, 100022, 200044, 411629, 823258, 1646516, 5351177, 10702354, 21404708]

約数ペア:

[(1, 21404708), (2, 10702354), (4, 5351177), (13, 1646516), (26, 823258), (52, 411629), (107, 200044), (214, 100022), (428, 50011), (1391, 15388), (2782, 7694), (3847, 5564)]