18804717

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{5399}}^1$

素因数の和:5454

約数の個数: 20

約数和(自身を含む): 28749600

約数和(自身を除く): 9944883

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 5399, 16197, 48591, 145773, 232157, 437319, 696471, 2089413, 6268239, 18804717]

約数ペア:

[(1, 18804717), (3, 6268239), (9, 2089413), (27, 696471), (43, 437319), (81, 232157), (129, 145773), (387, 48591), (1161, 16197), (3483, 5399)]