81223857

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:335

約数の個数: 64

約数和(自身を含む): 143404800

約数和(自身を除く): 62180943

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 99, 109, 117, 143, 193, 297, 327, 351, 429, 579, 981, 1199, 1287, 1417, 1737, 2123, 2509, 2943, 3597, 3861, 4251, 5211, 6369, 7527, 10791, 12753, 15587, 19107, 21037, 22581, 27599, 32373, 38259, 46761, 57321, 63111, 67743, 82797, 140283, 189333, 231407, 248391, 273481, 420849, 567999, 694221, 745173, 820443, 2082663, 2461329, 3008291, 6247989, 7383987, 9024873, 27074619, 81223857]

約数ペア:

[(1, 81223857), (3, 27074619), (9, 9024873), (11, 7383987), (13, 6247989), (27, 3008291), (33, 2461329), (39, 2082663), (99, 820443), (109, 745173), (117, 694221), (143, 567999), (193, 420849), (297, 273481), (327, 248391), (351, 231407), (429, 189333), (579, 140283), (981, 82797), (1199, 67743), (1287, 63111), (1417, 57321), (1737, 46761), (2123, 38259), (2509, 32373), (2943, 27599), (3597, 22581), (3861, 21037), (4251, 19107), (5211, 15587), (6369, 12753), (7527, 10791)]