20808865

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{54049}}^1$

素因数の和:54072

約数の個数: 16

約数和(自身を含む): 31132800

約数和(自身を除く): 10323935

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 54049, 270245, 378343, 594539, 1891715, 2972695, 4161773, 20808865]

約数ペア:

[(1, 20808865), (5, 4161773), (7, 2972695), (11, 1891715), (35, 594539), (55, 378343), (77, 270245), (385, 54049)]