20557016

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{449}}^1$

素因数の和:611

約数の個数: 32

約数和(自身を含む): 39690000

約数和(自身を除く): 19132984

約数列:

[1, 2, 4, 8, 59, 97, 118, 194, 236, 388, 449, 472, 776, 898, 1796, 3592, 5723, 11446, 22892, 26491, 43553, 45784, 52982, 87106, 105964, 174212, 211928, 348424, 2569627, 5139254, 10278508, 20557016]

約数ペア:

[(1, 20557016), (2, 10278508), (4, 5139254), (8, 2569627), (59, 348424), (97, 211928), (118, 174212), (194, 105964), (236, 87106), (388, 52982), (449, 45784), (472, 43553), (776, 26491), (898, 22892), (1796, 11446), (3592, 5723)]