20648169

素因数分解:

$3^3\times {\mathrm{157}}^1\times {\mathrm{4871}}^1$

素因数の和:5037

約数の個数: 16

約数和(自身を含む): 30791040

約数和(自身を除く): 10142871

約数列:

[1, 3, 9, 27, 157, 471, 1413, 4239, 4871, 14613, 43839, 131517, 764747, 2294241, 6882723, 20648169]

約数ペア:

[(1, 20648169), (3, 6882723), (9, 2294241), (27, 764747), (157, 131517), (471, 43839), (1413, 14613), (4239, 4871)]