19901332

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{1021}}^1$

素因数の和:1479

約数の個数: 24

約数和(自身を含む): 38116512

約数和(自身を除く): 18215180

約数列:

[1, 2, 4, 11, 22, 44, 443, 886, 1021, 1772, 2042, 4084, 4873, 9746, 11231, 19492, 22462, 44924, 452303, 904606, 1809212, 4975333, 9950666, 19901332]

約数ペア:

[(1, 19901332), (2, 9950666), (4, 4975333), (11, 1809212), (22, 904606), (44, 452303), (443, 44924), (886, 22462), (1021, 19492), (1772, 11231), (2042, 9746), (4084, 4873)]