25391457

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 47471424

約数和(自身を除く): 22079967

約数列:

[1, 3, 7, 9, 13, 21, 39, 43, 49, 63, 91, 103, 117, 129, 147, 273, 301, 309, 387, 441, 559, 637, 721, 819, 903, 927, 1339, 1677, 1911, 2107, 2163, 2709, 3913, 4017, 4429, 5031, 5047, 5733, 6321, 6489, 9373, 11739, 12051, 13287, 15141, 18963, 27391, 28119, 31003, 35217, 39861, 45423, 57577, 65611, 82173, 84357, 93009, 172731, 196833, 217021, 246519, 279027, 403039, 518193, 590499, 651063, 1209117, 1953189, 2821273, 3627351, 8463819, 25391457]

約数ペア:

[(1, 25391457), (3, 8463819), (7, 3627351), (9, 2821273), (13, 1953189), (21, 1209117), (39, 651063), (43, 590499), (49, 518193), (63, 403039), (91, 279027), (103, 246519), (117, 217021), (129, 196833), (147, 172731), (273, 93009), (301, 84357), (309, 82173), (387, 65611), (441, 57577), (559, 45423), (637, 39861), (721, 35217), (819, 31003), (903, 28119), (927, 27391), (1339, 18963), (1677, 15141), (1911, 13287), (2107, 12051), (2163, 11739), (2709, 9373), (3913, 6489), (4017, 6321), (4429, 5733), (5031, 5047)]