20998310

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{91297}}^1$

素因数の和:91327

約数の個数: 16

約数和(自身を含む): 39440736

約数和(自身を除く): 18442426

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 91297, 182594, 456485, 912970, 2099831, 4199662, 10499155, 20998310]

約数ペア:

[(1, 20998310), (2, 10499155), (5, 4199662), (10, 2099831), (23, 912970), (46, 456485), (115, 182594), (230, 91297)]