261004023

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:209

約数の個数: 96

約数和(自身を含む): 474439680

約数和(自身を除く): 213435657

約数列:

[1, 3, 7, 9, 21, 23, 43, 59, 63, 69, 71, 129, 161, 177, 207, 213, 301, 387, 413, 483, 497, 531, 639, 903, 989, 1239, 1357, 1449, 1491, 1633, 2537, 2709, 2967, 3053, 3717, 4071, 4189, 4473, 4899, 6923, 7611, 8901, 9159, 9499, 11431, 12213, 12567, 14697, 17759, 20769, 21371, 22833, 27477, 28497, 29323, 34293, 37701, 53277, 58351, 62307, 64113, 70219, 85491, 87969, 96347, 102879, 159831, 175053, 180127, 192339, 210657, 263907, 289041, 408457, 491533, 525159, 540381, 631971, 674429, 867123, 1225371, 1260889, 1474599, 1621143, 2023287, 3676113, 3782667, 4142921, 4423797, 6069861, 11348001, 12428763, 29000447, 37286289, 87001341, 261004023]

約数ペア:

[(1, 261004023), (3, 87001341), (7, 37286289), (9, 29000447), (21, 12428763), (23, 11348001), (43, 6069861), (59, 4423797), (63, 4142921), (69, 3782667), (71, 3676113), (129, 2023287), (161, 1621143), (177, 1474599), (207, 1260889), (213, 1225371), (301, 867123), (387, 674429), (413, 631971), (483, 540381), (497, 525159), (531, 491533), (639, 408457), (903, 289041), (989, 263907), (1239, 210657), (1357, 192339), (1449, 180127), (1491, 175053), (1633, 159831), (2537, 102879), (2709, 96347), (2967, 87969), (3053, 85491), (3717, 70219), (4071, 64113), (4189, 62307), (4473, 58351), (4899, 53277), (6923, 37701), (7611, 34293), (8901, 29323), (9159, 28497), (9499, 27477), (11431, 22833), (12213, 21371), (12567, 20769), (14697, 17759)]