21450789

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{599}}^1$

素因数の和:801

約数の個数: 24

約数和(自身を含む): 32572800

約数和(自身を除く): 11122011

約数列:

[1, 3, 9, 23, 69, 173, 207, 519, 599, 1557, 1797, 3979, 5391, 11937, 13777, 35811, 41331, 103627, 123993, 310881, 932643, 2383421, 7150263, 21450789]

約数ペア:

[(1, 21450789), (3, 7150263), (9, 2383421), (23, 932643), (69, 310881), (173, 123993), (207, 103627), (519, 41331), (599, 35811), (1557, 13777), (1797, 11937), (3979, 5391)]