19641564

素因数分解:

$2^2\times 3^2\times {\mathrm{545599}}^1$

素因数の和:545609

約数の個数: 18

約数和(自身を含む): 49649600

約数和(自身を除く): 30008036

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 545599, 1091198, 1636797, 2182396, 3273594, 4910391, 6547188, 9820782, 19641564]

約数ペア:

[(1, 19641564), (2, 9820782), (3, 6547188), (4, 4910391), (6, 3273594), (9, 2182396), (12, 1636797), (18, 1091198), (36, 545599)]