21228369

素因数分解:

$3^1\times {\mathrm{43}}^3\times {\mathrm{89}}^1$

素因数の和:221

約数の個数: 16

約数和(自身を含む): 29304000

約数和(自身を除く): 8075631

約数列:

[1, 3, 43, 89, 129, 267, 1849, 3827, 5547, 11481, 79507, 164561, 238521, 493683, 7076123, 21228369]

約数ペア:

[(1, 21228369), (3, 7076123), (43, 493683), (89, 238521), (129, 164561), (267, 79507), (1849, 11481), (3827, 5547)]