21881332

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{497303}}^1$

素因数の和:497318

約数の個数: 12

約数和(自身を含む): 41773536

約数和(自身を除く): 19892204

約数列:

[1, 2, 4, 11, 22, 44, 497303, 994606, 1989212, 5470333, 10940666, 21881332]

約数ペア:

[(1, 21881332), (2, 10940666), (4, 5470333), (11, 1989212), (22, 994606), (44, 497303)]