643485157

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{641}}^1\times {\mathrm{2351}}^1$

素因数の和:3060

約数の個数: 16

約数和(自身を含む): 748952064

約数和(自身を除く): 105466907

約数列:

[1, 7, 61, 427, 641, 2351, 4487, 16457, 39101, 143411, 273707, 1003877, 1506991, 10548937, 91926451, 643485157]

約数ペア:

[(1, 643485157), (7, 91926451), (61, 10548937), (427, 1506991), (641, 1003877), (2351, 273707), (4487, 143411), (16457, 39101)]