20911311

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{13127}}^1$

素因数の和:13195

約数の個数: 16

約数和(自身を含む): 31507200

約数和(自身を除く): 10595889

約数列:

[1, 3, 9, 27, 59, 177, 531, 1593, 13127, 39381, 118143, 354429, 774493, 2323479, 6970437, 20911311]

約数ペア:

[(1, 20911311), (3, 6970437), (9, 2323479), (27, 774493), (59, 354429), (177, 118143), (531, 39381), (1593, 13127)]