21604913

素因数分解:

${\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:229

約数の個数: 24

約数和(自身を含む): 25280640

約数和(自身を除く): 3675727

約数列:

[1, 11, 29, 47, 121, 131, 319, 517, 1363, 1441, 3509, 3799, 5687, 6157, 14993, 15851, 41789, 67727, 164923, 178553, 459679, 744997, 1964083, 21604913]

約数ペア:

[(1, 21604913), (11, 1964083), (29, 744997), (47, 459679), (121, 178553), (131, 164923), (319, 67727), (517, 41789), (1363, 15851), (1441, 14993), (3509, 6157), (3799, 5687)]