18204561

素因数分解:

$3^3\times {\mathrm{127}}^1\times {\mathrm{5309}}^1$

素因数の和:5445

約数の個数: 16

約数和(自身を含む): 27187200

約数和(自身を除く): 8982639

約数列:

[1, 3, 9, 27, 127, 381, 1143, 3429, 5309, 15927, 47781, 143343, 674243, 2022729, 6068187, 18204561]

約数ペア:

[(1, 18204561), (3, 6068187), (9, 2022729), (27, 674243), (127, 143343), (381, 47781), (1143, 15927), (3429, 5309)]