20904543

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{12421}}^1$

素因数の和:12455

約数の個数: 24

約数和(自身を含む): 34880976

約数和(自身を除く): 13976433

約数列:

[1, 3, 9, 11, 17, 33, 51, 99, 153, 187, 561, 1683, 12421, 37263, 111789, 136631, 211157, 409893, 633471, 1229679, 1900413, 2322727, 6968181, 20904543]

約数ペア:

[(1, 20904543), (3, 6968181), (9, 2322727), (11, 1900413), (17, 1229679), (33, 633471), (51, 409893), (99, 211157), (153, 136631), (187, 111789), (561, 37263), (1683, 12421)]