21929804

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{421727}}^1$

素因数の和:421744

約数の個数: 12

約数和(自身を含む): 41329344

約数和(自身を除く): 19399540

約数列:

[1, 2, 4, 13, 26, 52, 421727, 843454, 1686908, 5482451, 10964902, 21929804]

約数ペア:

[(1, 21929804), (2, 10964902), (4, 5482451), (13, 1686908), (26, 843454), (52, 421727)]