19531449

素因数分解:

$3^4\times 7^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:89

約数の個数: 80

約数和(自身を含む): 36784000

約数和(自身を除く): 17252551

約数列:

[1, 3, 7, 9, 19, 21, 27, 37, 49, 57, 63, 81, 111, 133, 147, 171, 189, 259, 333, 343, 399, 441, 513, 567, 703, 777, 931, 999, 1029, 1197, 1323, 1539, 1813, 2109, 2331, 2793, 2997, 3087, 3591, 3969, 4921, 5439, 6327, 6517, 6993, 8379, 9261, 10773, 12691, 14763, 16317, 18981, 19551, 20979, 25137, 27783, 34447, 38073, 44289, 48951, 56943, 58653, 75411, 103341, 114219, 132867, 146853, 175959, 241129, 310023, 342657, 398601, 527877, 723387, 930069, 1027971, 2170161, 2790207, 6510483, 19531449]

約数ペア:

[(1, 19531449), (3, 6510483), (7, 2790207), (9, 2170161), (19, 1027971), (21, 930069), (27, 723387), (37, 527877), (49, 398601), (57, 342657), (63, 310023), (81, 241129), (111, 175959), (133, 146853), (147, 132867), (171, 114219), (189, 103341), (259, 75411), (333, 58653), (343, 56943), (399, 48951), (441, 44289), (513, 38073), (567, 34447), (703, 27783), (777, 25137), (931, 20979), (999, 19551), (1029, 18981), (1197, 16317), (1323, 14763), (1539, 12691), (1813, 10773), (2109, 9261), (2331, 8379), (2793, 6993), (2997, 6517), (3087, 6327), (3591, 5439), (3969, 4921)]