20505436

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{25253}}^1$

素因数の和:25293

約数の個数: 24

約数和(自身を含む): 42426720

約数和(自身を除く): 21921284

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812, 25253, 50506, 101012, 176771, 353542, 707084, 732337, 1464674, 2929348, 5126359, 10252718, 20505436]

約数ペア:

[(1, 20505436), (2, 10252718), (4, 5126359), (7, 2929348), (14, 1464674), (28, 732337), (29, 707084), (58, 353542), (116, 176771), (203, 101012), (406, 50506), (812, 25253)]