51251697

素因数分解:

$3^4\times 7^2\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:412

約数の個数: 60

約数和(自身を含む): 91730100

約数和(自身を除く): 40478403

約数列:

[1, 3, 7, 9, 21, 27, 37, 49, 63, 81, 111, 147, 189, 259, 333, 349, 441, 567, 777, 999, 1047, 1323, 1813, 2331, 2443, 2997, 3141, 3969, 5439, 6993, 7329, 9423, 12913, 16317, 17101, 20979, 21987, 28269, 38739, 48951, 51303, 65961, 90391, 116217, 146853, 153909, 197883, 271173, 348651, 461727, 632737, 813519, 1045953, 1385181, 1898211, 2440557, 5694633, 7321671, 17083899, 51251697]

約数ペア:

[(1, 51251697), (3, 17083899), (7, 7321671), (9, 5694633), (21, 2440557), (27, 1898211), (37, 1385181), (49, 1045953), (63, 813519), (81, 632737), (111, 461727), (147, 348651), (189, 271173), (259, 197883), (333, 153909), (349, 146853), (441, 116217), (567, 90391), (777, 65961), (999, 51303), (1047, 48951), (1323, 38739), (1813, 28269), (2331, 21987), (2443, 20979), (2997, 17101), (3141, 16317), (3969, 12913), (5439, 9423), (6993, 7329)]