81836439

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{193}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 118821120

約数和(自身を除く): 36984681

約数列:

[1, 3, 19, 43, 57, 129, 173, 193, 519, 579, 817, 2451, 3287, 3667, 7439, 8299, 9861, 11001, 22317, 24897, 33389, 100167, 141341, 157681, 424023, 473043, 634391, 1435727, 1903173, 4307181, 27278813, 81836439]

約数ペア:

[(1, 81836439), (3, 27278813), (19, 4307181), (43, 1903173), (57, 1435727), (129, 634391), (173, 473043), (193, 424023), (519, 157681), (579, 141341), (817, 100167), (2451, 33389), (3287, 24897), (3667, 22317), (7439, 11001), (8299, 9861)]