20688136

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{12739}}^1$

素因数の和:12781

約数の個数: 32

約数和(自身を含む): 45864000

約数和(自身を除く): 25175864

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 116, 203, 232, 406, 812, 1624, 12739, 25478, 50956, 89173, 101912, 178346, 356692, 369431, 713384, 738862, 1477724, 2586017, 2955448, 5172034, 10344068, 20688136]

約数ペア:

[(1, 20688136), (2, 10344068), (4, 5172034), (7, 2955448), (8, 2586017), (14, 1477724), (28, 738862), (29, 713384), (56, 369431), (58, 356692), (116, 178346), (203, 101912), (232, 89173), (406, 50956), (812, 25478), (1624, 12739)]