20913687

素因数分解:

$3^3\times {\mathrm{211}}^1\times {\mathrm{3671}}^1$

素因数の和:3891

約数の個数: 16

約数和(自身を含む): 31138560

約数和(自身を除く): 10224873

約数列:

[1, 3, 9, 27, 211, 633, 1899, 3671, 5697, 11013, 33039, 99117, 774581, 2323743, 6971229, 20913687]

約数ペア:

[(1, 20913687), (3, 6971229), (9, 2323743), (27, 774581), (211, 99117), (633, 33039), (1899, 11013), (3671, 5697)]