21005300864

素因数分解:

$2^7\times {\mathrm{5657}}^1\times {\mathrm{29009}}^1$

素因数の和:34680

約数の個数: 32

約数和(自身を含む): 41855337900

約数和(自身を除く): 20850037036

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 5657, 11314, 22628, 29009, 45256, 58018, 90512, 116036, 181024, 232072, 362048, 464144, 724096, 928288, 1856576, 3713152, 164103913, 328207826, 656415652, 1312831304, 2625662608, 5251325216, 10502650432, 21005300864]

約数ペア:

[(1, 21005300864), (2, 10502650432), (4, 5251325216), (8, 2625662608), (16, 1312831304), (32, 656415652), (64, 328207826), (128, 164103913), (5657, 3713152), (11314, 1856576), (22628, 928288), (29009, 724096), (45256, 464144), (58018, 362048), (90512, 232072), (116036, 181024)]