20687427

素因数分解:

$3^3\times {\mathrm{89}}^1\times {\mathrm{8609}}^1$

素因数の和:8707

約数の個数: 16

約数和(自身を含む): 30996000

約数和(自身を除く): 10308573

約数列:

[1, 3, 9, 27, 89, 267, 801, 2403, 8609, 25827, 77481, 232443, 766201, 2298603, 6895809, 20687427]

約数ペア:

[(1, 20687427), (3, 6895809), (9, 2298603), (27, 766201), (89, 232443), (267, 77481), (801, 25827), (2403, 8609)]