21776877

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{18757}}^1$

素因数の和:18809

約数の個数: 16

約数和(自身を含む): 33014080

約数和(自身を除く): 11237203

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 18757, 56271, 168813, 506439, 806551, 2419653, 7258959, 21776877]

約数ペア:

[(1, 21776877), (3, 7258959), (9, 2419653), (27, 806551), (43, 506439), (129, 168813), (387, 56271), (1161, 18757)]