20317864

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{12511}}^1$

素因数の和:12553

約数の個数: 32

約数和(自身を含む): 45043200

約数和(自身を除く): 24725336

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 116, 203, 232, 406, 812, 1624, 12511, 25022, 50044, 87577, 100088, 175154, 350308, 362819, 700616, 725638, 1451276, 2539733, 2902552, 5079466, 10158932, 20317864]

約数ペア:

[(1, 20317864), (2, 10158932), (4, 5079466), (7, 2902552), (8, 2539733), (14, 1451276), (28, 725638), (29, 700616), (56, 362819), (58, 350308), (116, 175154), (203, 100088), (232, 87577), (406, 50044), (812, 25022), (1624, 12511)]