21057124

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{478571}}^1$

素因数の和:478586

約数の個数: 12

約数和(自身を含む): 40200048

約数和(自身を除く): 19142924

約数列:

[1, 2, 4, 11, 22, 44, 478571, 957142, 1914284, 5264281, 10528562, 21057124]

約数ペア:

[(1, 21057124), (2, 10528562), (4, 5264281), (11, 1914284), (22, 957142), (44, 478571)]