21143188

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{480527}}^1$

素因数の和:480542

約数の個数: 12

約数和(自身を含む): 40364352

約数和(自身を除く): 19221164

約数列:

[1, 2, 4, 11, 22, 44, 480527, 961054, 1922108, 5285797, 10571594, 21143188]

約数ペア:

[(1, 21143188), (2, 10571594), (4, 5285797), (11, 1922108), (22, 961054), (44, 480527)]