20811564

素因数分解:

$2^2\times 3^2\times {\mathrm{277}}^1\times {\mathrm{2087}}^1$

素因数の和:2374

約数の個数: 36

約数和(自身を含む): 52822224

約数和(自身を除く): 32010660

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 277, 554, 831, 1108, 1662, 2087, 2493, 3324, 4174, 4986, 6261, 8348, 9972, 12522, 18783, 25044, 37566, 75132, 578099, 1156198, 1734297, 2312396, 3468594, 5202891, 6937188, 10405782, 20811564]

約数ペア:

[(1, 20811564), (2, 10405782), (3, 6937188), (4, 5202891), (6, 3468594), (9, 2312396), (12, 1734297), (18, 1156198), (36, 578099), (277, 75132), (554, 37566), (831, 25044), (1108, 18783), (1662, 12522), (2087, 9972), (2493, 8348), (3324, 6261), (4174, 4986)]