21580156

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{1861}}^1$

素因数の和:2101

約数の個数: 24

約数和(自身を含む): 40874624

約数和(自身を除く): 19294468

約数列:

[1, 2, 4, 13, 26, 52, 223, 446, 892, 1861, 2899, 3722, 5798, 7444, 11596, 24193, 48386, 96772, 415003, 830006, 1660012, 5395039, 10790078, 21580156]

約数ペア:

[(1, 21580156), (2, 10790078), (4, 5395039), (13, 1660012), (26, 830006), (52, 415003), (223, 96772), (446, 48386), (892, 24193), (1861, 11596), (2899, 7444), (3722, 5798)]