20168491

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{317}}^1$

素因数の和:534

約数の個数: 16

約数和(自身を含む): 23659200

約数和(自身を除く): 3490709

約数列:

[1, 7, 61, 149, 317, 427, 1043, 2219, 9089, 19337, 47233, 63623, 135359, 330631, 2881213, 20168491]

約数ペア:

[(1, 20168491), (7, 2881213), (61, 330631), (149, 135359), (317, 63623), (427, 47233), (1043, 19337), (2219, 9089)]