18865953

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{2617}}^1$

素因数の和:2718

約数の個数: 20

約数和(自身を含む): 28510020

約数和(自身を除く): 9644067

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 2617, 7209, 7851, 23553, 70659, 211977, 232913, 698739, 2096217, 6288651, 18865953]

約数ペア:

[(1, 18865953), (3, 6288651), (9, 2096217), (27, 698739), (81, 232913), (89, 211977), (267, 70659), (801, 23553), (2403, 7851), (2617, 7209)]