20913519

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{3389}}^1$

素因数の和:3431

約数の個数: 24

約数和(自身を含む): 32462640

約数和(自身を除く): 11549121

約数列:

[1, 3, 11, 17, 33, 51, 121, 187, 363, 561, 2057, 3389, 6171, 10167, 37279, 57613, 111837, 172839, 410069, 633743, 1230207, 1901229, 6971173, 20913519]

約数ペア:

[(1, 20913519), (3, 6971173), (11, 1901229), (17, 1230207), (33, 633743), (51, 410069), (121, 172839), (187, 111837), (363, 57613), (561, 37279), (2057, 10167), (3389, 6171)]