21821852

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{419651}}^1$

素因数の和:419668

約数の個数: 12

約数和(自身を含む): 41125896

約数和(自身を除く): 19304044

約数列:

[1, 2, 4, 13, 26, 52, 419651, 839302, 1678604, 5455463, 10910926, 21821852]

約数ペア:

[(1, 21821852), (2, 10910926), (4, 5455463), (13, 1678604), (26, 839302), (52, 419651)]