21789262

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{521}}^1\times {\mathrm{1901}}^1$

素因数の和:2435

約数の個数: 16

約数和(自身を含む): 35742384

約数和(自身を除く): 13953122

約数列:

[1, 2, 11, 22, 521, 1042, 1901, 3802, 5731, 11462, 20911, 41822, 990421, 1980842, 10894631, 21789262]

約数ペア:

[(1, 21789262), (2, 10894631), (11, 1980842), (22, 990421), (521, 41822), (1042, 20911), (1901, 11462), (3802, 5731)]