20416786

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{347}}^1$

素因数の和:466

約数の個数: 32

約数和(自身を含む): 34610688

約数和(自身を除く): 14193902

約数列:

[1, 2, 13, 26, 31, 62, 73, 146, 347, 403, 694, 806, 949, 1898, 2263, 4511, 4526, 9022, 10757, 21514, 25331, 29419, 50662, 58838, 139841, 279682, 329303, 658606, 785261, 1570522, 10208393, 20416786]

約数ペア:

[(1, 20416786), (2, 10208393), (13, 1570522), (26, 785261), (31, 658606), (62, 329303), (73, 279682), (146, 139841), (347, 58838), (403, 50662), (694, 29419), (806, 25331), (949, 21514), (1898, 10757), (2263, 9022), (4511, 4526)]