21106840816

素因数分解:

$2^4\times {\mathrm{701}}^1\times {\mathrm{1881851}}^1$

素因数の和:1882560

約数の個数: 20

約数和(自身を含む): 40952863224

約数和(自身を除く): 19846022408

約数列:

[1, 2, 4, 8, 16, 701, 1402, 2804, 5608, 11216, 1881851, 3763702, 7527404, 15054808, 30109616, 1319177551, 2638355102, 5276710204, 10553420408, 21106840816]

約数ペア:

[(1, 21106840816), (2, 10553420408), (4, 5276710204), (8, 2638355102), (16, 1319177551), (701, 30109616), (1402, 15054808), (2804, 7527404), (5608, 3763702), (11216, 1881851)]