20421764

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{464131}}^1$

素因数の和:464146

約数の個数: 12

約数和(自身を含む): 38987088

約数和(自身を除く): 18565324

約数列:

[1, 2, 4, 11, 22, 44, 464131, 928262, 1856524, 5105441, 10210882, 20421764]

約数ペア:

[(1, 20421764), (2, 10210882), (4, 5105441), (11, 1856524), (22, 928262), (44, 464131)]