20931471

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{12437}}^1$

素因数の和:12471

約数の個数: 24

約数和(自身を含む): 34925904

約数和(自身を除く): 13994433

約数列:

[1, 3, 9, 11, 17, 33, 51, 99, 153, 187, 561, 1683, 12437, 37311, 111933, 136807, 211429, 410421, 634287, 1231263, 1902861, 2325719, 6977157, 20931471]

約数ペア:

[(1, 20931471), (3, 6977157), (9, 2325719), (11, 1902861), (17, 1231263), (33, 634287), (51, 410421), (99, 211429), (153, 136807), (187, 111933), (561, 37311), (1683, 12437)]