20928042009

素因数分解:

$3^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{839}}^1$

素因数の和:965

約数の個数: 160

約数和(自身を含む): 38932185600

約数和(自身を除く): 18004143591

約数列:

[1, 3, 7, 9, 21, 27, 29, 37, 41, 63, 81, 87, 111, 123, 189, 203, 259, 261, 287, 333, 369, 567, 609, 777, 783, 839, 861, 999, 1073, 1107, 1189, 1517, 1827, 2331, 2349, 2517, 2583, 2997, 3219, 3321, 3567, 4551, 5481, 5873, 6993, 7511, 7551, 7749, 8323, 9657, 10619, 10701, 13653, 16443, 17619, 20979, 22533, 22653, 23247, 24331, 24969, 28971, 31043, 31857, 32103, 34399, 40959, 43993, 52857, 67599, 67959, 72993, 74907, 86913, 93129, 95571, 96309, 103197, 122877, 131979, 158571, 170317, 202797, 217301, 218979, 224721, 240793, 279387, 286713, 307951, 309591, 395937, 475713, 510951, 608391, 651903, 656937, 674163, 722379, 838161, 860139, 900247, 923853, 928773, 997571, 1187811, 1272763, 1532853, 1955709, 1970811, 2167137, 2514483, 2700741, 2771559, 2786319, 2992713, 3563433, 3818289, 4598559, 5867127, 6301729, 6501411, 6982997, 8102223, 8314677, 8909341, 8978139, 11454867, 13795677, 17601381, 18905187, 19504233, 20948991, 24306669, 24944031, 26728023, 26934417, 34364601, 36910127, 56715561, 62846973, 72920007, 80184069, 80803251, 103093803, 110730381, 170146683, 188540919, 240552207, 258370889, 332191143, 510440049, 565622757, 721656621, 775112667, 996573429, 2325338001, 2989720287, 6976014003, 20928042009]

約数ペア:

[(1, 20928042009), (3, 6976014003), (7, 2989720287), (9, 2325338001), (21, 996573429), (27, 775112667), (29, 721656621), (37, 565622757), (41, 510440049), (63, 332191143), (81, 258370889), (87, 240552207), (111, 188540919), (123, 170146683), (189, 110730381), (203, 103093803), (259, 80803251), (261, 80184069), (287, 72920007), (333, 62846973), (369, 56715561), (567, 36910127), (609, 34364601), (777, 26934417), (783, 26728023), (839, 24944031), (861, 24306669), (999, 20948991), (1073, 19504233), (1107, 18905187), (1189, 17601381), (1517, 13795677), (1827, 11454867), (2331, 8978139), (2349, 8909341), (2517, 8314677), (2583, 8102223), (2997, 6982997), (3219, 6501411), (3321, 6301729), (3567, 5867127), (4551, 4598559), (5481, 3818289), (5873, 3563433), (6993, 2992713), (7511, 2786319), (7551, 2771559), (7749, 2700741), (8323, 2514483), (9657, 2167137), (10619, 1970811), (10701, 1955709), (13653, 1532853), (16443, 1272763), (17619, 1187811), (20979, 997571), (22533, 928773), (22653, 923853), (23247, 900247), (24331, 860139), (24969, 838161), (28971, 722379), (31043, 674163), (31857, 656937), (32103, 651903), (34399, 608391), (40959, 510951), (43993, 475713), (52857, 395937), (67599, 309591), (67959, 307951), (72993, 286713), (74907, 279387), (86913, 240793), (93129, 224721), (95571, 218979), (96309, 217301), (103197, 202797), (122877, 170317), (131979, 158571)]