21543789

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1\times {\mathrm{617}}^1$

素因数の和:836

約数の個数: 16

約数和(自身を含む): 29308032

約数和(自身を除く): 7764243

約数列:

[1, 3, 103, 113, 309, 339, 617, 1851, 11639, 34917, 63551, 69721, 190653, 209163, 7181263, 21543789]

約数ペア:

[(1, 21543789), (3, 7181263), (103, 209163), (113, 190653), (309, 69721), (339, 63551), (617, 34917), (1851, 11639)]