40161909

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{1999}}^1$

素因数の和:2220

約数の個数: 16

約数和(自身を含む): 55328000

約数和(自身を除く): 15166091

約数列:

[1, 3, 37, 111, 181, 543, 1999, 5997, 6697, 20091, 73963, 221889, 361819, 1085457, 13387303, 40161909]

約数ペア:

[(1, 40161909), (3, 13387303), (37, 1085457), (111, 361819), (181, 221889), (543, 73963), (1999, 20091), (5997, 6697)]