20900924

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{11047}}^1$

素因数の和:11105

約数の個数: 24

約数和(自身を含む): 40833408

約数和(自身を除く): 19932484

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 11047, 22094, 44188, 121517, 243034, 475021, 486068, 950042, 1900084, 5225231, 10450462, 20900924]

約数ペア:

[(1, 20900924), (2, 10450462), (4, 5225231), (11, 1900084), (22, 950042), (43, 486068), (44, 475021), (86, 243034), (172, 121517), (473, 44188), (946, 22094), (1892, 11047)]