21544655

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:415

約数の個数: 24

約数和(自身を含む): 28728000

約数和(自身を除く): 7183345

約数列:

[1, 5, 11, 55, 121, 149, 239, 605, 745, 1195, 1639, 2629, 8195, 13145, 18029, 28919, 35611, 90145, 144595, 178055, 391721, 1958605, 4308931, 21544655]

約数ペア:

[(1, 21544655), (5, 4308931), (11, 1958605), (55, 391721), (121, 178055), (149, 144595), (239, 90145), (605, 35611), (745, 28919), (1195, 18029), (1639, 13145), (2629, 8195)]