20887929

素因数分解:

$3^3\times {\mathrm{449}}^1\times {\mathrm{1723}}^1$

素因数の和:2181

約数の個数: 16

約数和(自身を含む): 31032000

約数和(自身を除く): 10144071

約数列:

[1, 3, 9, 27, 449, 1347, 1723, 4041, 5169, 12123, 15507, 46521, 773627, 2320881, 6962643, 20887929]

約数ペア:

[(1, 20887929), (3, 6962643), (9, 2320881), (27, 773627), (449, 46521), (1347, 15507), (1723, 12123), (4041, 5169)]