81435771

素因数分解:

$3^2\times {\mathrm{173}}^1\times {\mathrm{193}}^1\times {\mathrm{271}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 119361216

約数和(自身を除く): 37925445

約数列:

[1, 3, 9, 173, 193, 271, 519, 579, 813, 1557, 1737, 2439, 33389, 46883, 52303, 100167, 140649, 156909, 300501, 421947, 470727, 9048419, 27145257, 81435771]

約数ペア:

[(1, 81435771), (3, 27145257), (9, 9048419), (173, 470727), (193, 421947), (271, 300501), (519, 156909), (579, 140649), (813, 100167), (1557, 52303), (1737, 46883), (2439, 33389)]