213657620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{971171}}^1$

素因数の和:971191

約数の個数: 24

約数和(自身を含む): 489470688

約数和(自身を除く): 275813068

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 971171, 1942342, 3884684, 4855855, 9711710, 10682881, 19423420, 21365762, 42731524, 53414405, 106828810, 213657620]

約数ペア:

[(1, 213657620), (2, 106828810), (4, 53414405), (5, 42731524), (10, 21365762), (11, 19423420), (20, 10682881), (22, 9711710), (44, 4855855), (55, 3884684), (110, 1942342), (220, 971171)]