20994259

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7727}}^1$

素因数の和:7770

約数の個数: 16

約数和(自身を含む): 25966080

約数和(自身を除く): 4971821

約数列:

[1, 11, 13, 19, 143, 209, 247, 2717, 7727, 84997, 100451, 146813, 1104961, 1614943, 1908569, 20994259]

約数ペア:

[(1, 20994259), (11, 1908569), (13, 1614943), (19, 1104961), (143, 146813), (209, 100451), (247, 84997), (2717, 7727)]