20518310

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47717}}^1$

素因数の和:47767

約数の個数: 16

約数和(自身を含む): 37792656

約数和(自身を除く): 17274346

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 47717, 95434, 238585, 477170, 2051831, 4103662, 10259155, 20518310]

約数ペア:

[(1, 20518310), (2, 10259155), (5, 4103662), (10, 2051831), (43, 477170), (86, 238585), (215, 95434), (430, 47717)]