20786000858

素因数分解:

$2^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{971}}^1\times {\mathrm{11161}}^1$

素因数の和:12278

約数の個数: 32

約数和(自身を含む): 35933424768

約数和(自身を除く): 15147423910

約数列:

[1, 2, 7, 14, 137, 274, 959, 971, 1918, 1942, 6797, 11161, 13594, 22322, 78127, 133027, 156254, 266054, 931189, 1529057, 1862378, 3058114, 10703399, 10837331, 21406798, 21674662, 75861317, 151722634, 1484714347, 2969428694, 10393000429, 20786000858]

約数ペア:

[(1, 20786000858), (2, 10393000429), (7, 2969428694), (14, 1484714347), (137, 151722634), (274, 75861317), (959, 21674662), (971, 21406798), (1918, 10837331), (1942, 10703399), (6797, 3058114), (11161, 1862378), (13594, 1529057), (22322, 931189), (78127, 266054), (133027, 156254)]