20728389

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{3359}}^1$

素因数の和:3401

約数の個数: 24

約数和(自身を含む): 32175360

約数和(自身を除く): 11446971

約数列:

[1, 3, 11, 17, 33, 51, 121, 187, 363, 561, 2057, 3359, 6171, 10077, 36949, 57103, 110847, 171309, 406439, 628133, 1219317, 1884399, 6909463, 20728389]

約数ペア:

[(1, 20728389), (3, 6909463), (11, 1884399), (17, 1219317), (33, 628133), (51, 406439), (121, 171309), (187, 110847), (363, 57103), (561, 36949), (2057, 10077), (3359, 6171)]