820287783

素因数分解:

$3^3\times 7^2\times {\mathrm{739}}^1\times {\mathrm{839}}^1$

素因数の和:1601

約数の個数: 48

約数和(自身を含む): 1417248000

約数和(自身を除く): 596960217

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 739, 839, 1323, 2217, 2517, 5173, 5873, 6651, 7551, 15519, 17619, 19953, 22653, 36211, 41111, 46557, 52857, 108633, 123333, 139671, 158571, 325899, 369999, 620021, 977697, 1109997, 1860063, 4340147, 5580189, 13020441, 16740567, 30381029, 39061323, 91143087, 117183969, 273429261, 820287783]

約数ペア:

[(1, 820287783), (3, 273429261), (7, 117183969), (9, 91143087), (21, 39061323), (27, 30381029), (49, 16740567), (63, 13020441), (147, 5580189), (189, 4340147), (441, 1860063), (739, 1109997), (839, 977697), (1323, 620021), (2217, 369999), (2517, 325899), (5173, 158571), (5873, 139671), (6651, 123333), (7551, 108633), (15519, 52857), (17619, 46557), (19953, 41111), (22653, 36211)]