289443357

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{64709}}^1$

素因数の和:64793

約数の個数: 24

約数和(自身を含む): 484548480

約数和(自身を除く): 195105123

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 64709, 194127, 452963, 582381, 1358889, 4076667, 4594339, 13783017, 32160373, 41349051, 96481119, 289443357]

約数ペア:

[(1, 289443357), (3, 96481119), (7, 41349051), (9, 32160373), (21, 13783017), (63, 4594339), (71, 4076667), (213, 1358889), (497, 582381), (639, 452963), (1491, 194127), (4473, 64709)]