21051404

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{478441}}^1$

素因数の和:478456

約数の個数: 12

約数和(自身を含む): 40189128

約数和(自身を除く): 19137724

約数列:

[1, 2, 4, 11, 22, 44, 478441, 956882, 1913764, 5262851, 10525702, 21051404]

約数ペア:

[(1, 21051404), (2, 10525702), (4, 5262851), (11, 1913764), (22, 956882), (44, 478441)]