291287997

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:224

約数の個数: 144

約数和(自身を含む): 597542400

約数和(自身を除く): 306254403

約数列:

[1, 3, 7, 9, 11, 13, 21, 31, 33, 39, 49, 63, 77, 91, 93, 99, 117, 143, 147, 149, 217, 231, 273, 279, 341, 403, 429, 441, 447, 539, 637, 651, 693, 819, 1001, 1023, 1043, 1209, 1287, 1341, 1519, 1617, 1639, 1911, 1937, 1953, 2387, 2821, 3003, 3069, 3129, 3627, 4433, 4557, 4619, 4851, 4917, 5733, 5811, 7007, 7161, 7301, 8463, 9009, 9387, 11473, 13299, 13559, 13671, 13857, 14751, 16709, 17433, 19747, 21021, 21307, 21483, 21903, 25389, 31031, 32333, 34419, 39897, 40677, 41571, 50127, 50809, 59241, 60047, 63063, 63921, 65709, 80311, 93093, 94913, 96999, 103257, 122031, 149149, 150381, 152427, 177723, 180141, 191763, 217217, 226331, 240933, 279279, 284739, 290997, 355663, 420329, 447447, 457281, 540423, 651651, 660517, 678993, 722799, 854217, 1044043, 1066989, 1260987, 1342341, 1954953, 1981551, 2036979, 2489641, 2942303, 3132129, 3200967, 3782961, 4623619, 5944653, 7468923, 8826909, 9396387, 13870857, 22406769, 26480727, 32365333, 41612571, 97095999, 291287997]

約数ペア:

[(1, 291287997), (3, 97095999), (7, 41612571), (9, 32365333), (11, 26480727), (13, 22406769), (21, 13870857), (31, 9396387), (33, 8826909), (39, 7468923), (49, 5944653), (63, 4623619), (77, 3782961), (91, 3200967), (93, 3132129), (99, 2942303), (117, 2489641), (143, 2036979), (147, 1981551), (149, 1954953), (217, 1342341), (231, 1260987), (273, 1066989), (279, 1044043), (341, 854217), (403, 722799), (429, 678993), (441, 660517), (447, 651651), (539, 540423), (637, 457281), (651, 447447), (693, 420329), (819, 355663), (1001, 290997), (1023, 284739), (1043, 279279), (1209, 240933), (1287, 226331), (1341, 217217), (1519, 191763), (1617, 180141), (1639, 177723), (1911, 152427), (1937, 150381), (1953, 149149), (2387, 122031), (2821, 103257), (3003, 96999), (3069, 94913), (3129, 93093), (3627, 80311), (4433, 65709), (4557, 63921), (4619, 63063), (4851, 60047), (4917, 59241), (5733, 50809), (5811, 50127), (7007, 41571), (7161, 40677), (7301, 39897), (8463, 34419), (9009, 32333), (9387, 31031), (11473, 25389), (13299, 21903), (13559, 21483), (13671, 21307), (13857, 21021), (14751, 19747), (16709, 17433)]