21120429

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{83}}^1\times {\mathrm{701}}^1$

素因数の和:809

約数の個数: 24

約数和(自身を含む): 31370976

約数和(自身を除く): 10250547

約数列:

[1, 3, 11, 33, 83, 121, 249, 363, 701, 913, 2103, 2739, 7711, 10043, 23133, 30129, 58183, 84821, 174549, 254463, 640013, 1920039, 7040143, 21120429]

約数ペア:

[(1, 21120429), (3, 7040143), (11, 1920039), (33, 640013), (83, 254463), (121, 174549), (249, 84821), (363, 58183), (701, 30129), (913, 23133), (2103, 10043), (2739, 7711)]