20520891

素因数分解:

$3^3\times {\mathrm{503}}^1\times {\mathrm{1511}}^1$

素因数の和:2023

約数の個数: 16

約数和(自身を含む): 30481920

約数和(自身を除く): 9961029

約数列:

[1, 3, 9, 27, 503, 1509, 1511, 4527, 4533, 13581, 13599, 40797, 760033, 2280099, 6840297, 20520891]

約数ペア:

[(1, 20520891), (3, 6840297), (9, 2280099), (27, 760033), (503, 40797), (1509, 13599), (1511, 13581), (4527, 4533)]