261008514

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{21871}}^1$

素因数の和:21912

約数の個数: 64

約数和(自身を含む): 661409280

約数和(自身を除く): 400400766

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 27, 34, 39, 51, 54, 78, 102, 117, 153, 221, 234, 306, 351, 442, 459, 663, 702, 918, 1326, 1989, 3978, 5967, 11934, 21871, 43742, 65613, 131226, 196839, 284323, 371807, 393678, 568646, 590517, 743614, 852969, 1115421, 1181034, 1705938, 2230842, 2558907, 3346263, 4833491, 5117814, 6692526, 7676721, 9666982, 10038789, 14500473, 15353442, 20077578, 29000946, 43501419, 87002838, 130504257, 261008514]

約数ペア:

[(1, 261008514), (2, 130504257), (3, 87002838), (6, 43501419), (9, 29000946), (13, 20077578), (17, 15353442), (18, 14500473), (26, 10038789), (27, 9666982), (34, 7676721), (39, 6692526), (51, 5117814), (54, 4833491), (78, 3346263), (102, 2558907), (117, 2230842), (153, 1705938), (221, 1181034), (234, 1115421), (306, 852969), (351, 743614), (442, 590517), (459, 568646), (663, 393678), (702, 371807), (918, 284323), (1326, 196839), (1989, 131226), (3978, 65613), (5967, 43742), (11934, 21871)]