399307293

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:272

約数の個数: 128

約数和(自身を含む): 787968000

約数和(自身を除く): 388660707

約数列:

[1, 3, 7, 9, 11, 21, 27, 29, 33, 37, 63, 77, 87, 99, 111, 179, 189, 203, 231, 259, 261, 297, 319, 333, 407, 537, 609, 693, 777, 783, 957, 999, 1073, 1221, 1253, 1611, 1827, 1969, 2079, 2233, 2331, 2849, 2871, 3219, 3663, 3759, 4833, 5191, 5481, 5907, 6623, 6699, 6993, 7511, 8547, 8613, 9657, 10989, 11277, 11803, 13783, 15573, 17721, 19869, 20097, 22533, 25641, 28971, 33831, 35409, 36337, 41349, 46361, 46719, 53163, 57101, 59607, 60291, 67599, 72853, 76923, 82621, 106227, 109011, 124047, 139083, 140157, 171303, 178821, 192067, 202797, 218559, 247863, 318681, 327033, 372141, 399707, 417249, 509971, 513909, 576201, 655677, 743589, 981099, 1199121, 1251747, 1344469, 1529913, 1541727, 1728603, 1967031, 2112737, 2230767, 3597363, 4033407, 4589739, 5185809, 6338211, 10792089, 12100221, 13769217, 14789159, 19014633, 36300663, 44367477, 57043899, 133102431, 399307293]

約数ペア:

[(1, 399307293), (3, 133102431), (7, 57043899), (9, 44367477), (11, 36300663), (21, 19014633), (27, 14789159), (29, 13769217), (33, 12100221), (37, 10792089), (63, 6338211), (77, 5185809), (87, 4589739), (99, 4033407), (111, 3597363), (179, 2230767), (189, 2112737), (203, 1967031), (231, 1728603), (259, 1541727), (261, 1529913), (297, 1344469), (319, 1251747), (333, 1199121), (407, 981099), (537, 743589), (609, 655677), (693, 576201), (777, 513909), (783, 509971), (957, 417249), (999, 399707), (1073, 372141), (1221, 327033), (1253, 318681), (1611, 247863), (1827, 218559), (1969, 202797), (2079, 192067), (2233, 178821), (2331, 171303), (2849, 140157), (2871, 139083), (3219, 124047), (3663, 109011), (3759, 106227), (4833, 82621), (5191, 76923), (5481, 72853), (5907, 67599), (6623, 60291), (6699, 59607), (6993, 57101), (7511, 53163), (8547, 46719), (8613, 46361), (9657, 41349), (10989, 36337), (11277, 35409), (11803, 33831), (13783, 28971), (15573, 25641), (17721, 22533), (19869, 20097)]