1027971

素因数分解:

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

素因数の和:70

約数の個数: 40

約数和(自身を含む): 1839200

約数和(自身を除く): 811229

約数列:

[1, 3, 7, 9, 21, 27, 37, 49, 63, 81, 111, 147, 189, 259, 333, 343, 441, 567, 777, 999, 1029, 1323, 1813, 2331, 2997, 3087, 3969, 5439, 6993, 9261, 12691, 16317, 20979, 27783, 38073, 48951, 114219, 146853, 342657, 1027971]

約数ペア:

[(1, 1027971), (3, 342657), (7, 146853), (9, 114219), (21, 48951), (27, 38073), (37, 27783), (49, 20979), (63, 16317), (81, 12691), (111, 9261), (147, 6993), (189, 5439), (259, 3969), (333, 3087), (343, 2997), (441, 2331), (567, 1813), (777, 1323), (999, 1029)]