21518547

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{1723}}^1$

素因数の和:1930

約数の個数: 16

約数和(自身を含む): 30121728

約数和(自身を除く): 8603181

約数列:

[1, 3, 23, 69, 181, 543, 1723, 4163, 5169, 12489, 39629, 118887, 311863, 935589, 7172849, 21518547]

約数ペア:

[(1, 21518547), (3, 7172849), (23, 935589), (69, 311863), (181, 118887), (543, 39629), (1723, 12489), (4163, 5169)]