19228509

素因数分解:

$3^4\times {\mathrm{277}}^1\times {\mathrm{857}}^1$

素因数の和:1146

約数の個数: 20

約数和(自身を含む): 28861404

約数和(自身を除く): 9632895

約数列:

[1, 3, 9, 27, 81, 277, 831, 857, 2493, 2571, 7479, 7713, 22437, 23139, 69417, 237389, 712167, 2136501, 6409503, 19228509]

約数ペア:

[(1, 19228509), (3, 6409503), (9, 2136501), (27, 712167), (81, 237389), (277, 69417), (831, 23139), (857, 22437), (2493, 7713), (2571, 7479)]