21033188

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{43457}}^1$

素因数の和:43483

約数の個数: 18

約数和(自身を含む): 40459398

約数和(自身を除く): 19426210

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 43457, 86914, 173828, 478027, 956054, 1912108, 5258297, 10516594, 21033188]

約数ペア:

[(1, 21033188), (2, 10516594), (4, 5258297), (11, 1912108), (22, 956054), (44, 478027), (121, 173828), (242, 86914), (484, 43457)]