20982416

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14411}}^1$

素因数の和:14439

約数の個数: 40

約数和(自身を含む): 50038464

約数和(自身を除く): 29056048

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 14411, 28822, 57644, 100877, 115288, 187343, 201754, 230576, 374686, 403508, 749372, 807016, 1311401, 1498744, 1614032, 2622802, 2997488, 5245604, 10491208, 20982416]

約数ペア:

[(1, 20982416), (2, 10491208), (4, 5245604), (7, 2997488), (8, 2622802), (13, 1614032), (14, 1498744), (16, 1311401), (26, 807016), (28, 749372), (52, 403508), (56, 374686), (91, 230576), (104, 201754), (112, 187343), (182, 115288), (208, 100877), (364, 57644), (728, 28822), (1456, 14411)]