20090781

素因数分解:

$3^3\times {\mathrm{179}}^1\times {\mathrm{4157}}^1$

素因数の和:4345

約数の個数: 16

約数和(自身を含む): 29937600

約数和(自身を除く): 9846819

約数列:

[1, 3, 9, 27, 179, 537, 1611, 4157, 4833, 12471, 37413, 112239, 744103, 2232309, 6696927, 20090781]

約数ペア:

[(1, 20090781), (3, 6696927), (9, 2232309), (27, 744103), (179, 112239), (537, 37413), (1611, 12471), (4157, 4833)]