17887311

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{16987}}^1$

素因数の和:17012

約数の個数: 20

約数和(自身を含む): 28777672

約数和(自身を除く): 10890361

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 16987, 50961, 152883, 220831, 458649, 662493, 1375947, 1987479, 5962437, 17887311]

約数ペア:

[(1, 17887311), (3, 5962437), (9, 1987479), (13, 1375947), (27, 662493), (39, 458649), (81, 220831), (117, 152883), (351, 50961), (1053, 16987)]