28864381

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{401}}^1$

素因数の和:541

約数の個数: 24

約数和(自身を含む): 36570744

約数和(自身を除く): 7706363

約数列:

[1, 7, 13, 49, 91, 113, 401, 637, 791, 1469, 2807, 5213, 5537, 10283, 19649, 36491, 45313, 71981, 255437, 317191, 589069, 2220337, 4123483, 28864381]

約数ペア:

[(1, 28864381), (7, 4123483), (13, 2220337), (49, 589069), (91, 317191), (113, 255437), (401, 71981), (637, 45313), (791, 36491), (1469, 19649), (2807, 10283), (5213, 5537)]