21134277

素因数分解:

$3^4\times {\mathrm{113}}^1\times {\mathrm{2309}}^1$

素因数の和:2434

約数の個数: 20

約数和(自身を含む): 31864140

約数和(自身を除く): 10729863

約数列:

[1, 3, 9, 27, 81, 113, 339, 1017, 2309, 3051, 6927, 9153, 20781, 62343, 187029, 260917, 782751, 2348253, 7044759, 21134277]

約数ペア:

[(1, 21134277), (3, 7044759), (9, 2348253), (27, 782751), (81, 260917), (113, 187029), (339, 62343), (1017, 20781), (2309, 9153), (3051, 6927)]