20578516

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{25343}}^1$

素因数の和:25383

約数の個数: 24

約数和(自身を含む): 42577920

約数和(自身を除く): 21999404

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812, 25343, 50686, 101372, 177401, 354802, 709604, 734947, 1469894, 2939788, 5144629, 10289258, 20578516]

約数ペア:

[(1, 20578516), (2, 10289258), (4, 5144629), (7, 2939788), (14, 1469894), (28, 734947), (29, 709604), (58, 354802), (116, 177401), (203, 101372), (406, 50686), (812, 25343)]