20877056

素因数分解:

$2^8\times {\mathrm{81551}}^1$

素因数の和:81567

約数の個数: 18

約数和(自身を含む): 41673072

約数和(自身を除く): 20796016

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 81551, 163102, 326204, 652408, 1304816, 2609632, 5219264, 10438528, 20877056]

約数ペア:

[(1, 20877056), (2, 10438528), (4, 5219264), (8, 2609632), (16, 1304816), (32, 652408), (64, 326204), (128, 163102), (256, 81551)]