28571067

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 52711776

約数和(自身を除く): 24140709

約数列:

[1, 3, 7, 9, 17, 21, 37, 49, 51, 63, 103, 111, 119, 147, 153, 259, 309, 333, 357, 441, 629, 721, 777, 833, 927, 1071, 1751, 1813, 1887, 2163, 2331, 2499, 3811, 4403, 5047, 5253, 5439, 5661, 6489, 7497, 11433, 12257, 13209, 15141, 15759, 16317, 26677, 30821, 34299, 36771, 39627, 45423, 64787, 80031, 85799, 92463, 110313, 186739, 194361, 240093, 257397, 277389, 453509, 560217, 583083, 772191, 1360527, 1680651, 3174563, 4081581, 9523689, 28571067]

約数ペア:

[(1, 28571067), (3, 9523689), (7, 4081581), (9, 3174563), (17, 1680651), (21, 1360527), (37, 772191), (49, 583083), (51, 560217), (63, 453509), (103, 277389), (111, 257397), (119, 240093), (147, 194361), (153, 186739), (259, 110313), (309, 92463), (333, 85799), (357, 80031), (441, 64787), (629, 45423), (721, 39627), (777, 36771), (833, 34299), (927, 30821), (1071, 26677), (1751, 16317), (1813, 15759), (1887, 15141), (2163, 13209), (2331, 12257), (2499, 11433), (3811, 7497), (4403, 6489), (5047, 5661), (5253, 5439)]