20210526

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{127}}^1\times {\mathrm{421}}^1$

素因数の和:566

約数の個数: 64

約数和(自身を含む): 51855360

約数和(自身を除く): 31644834

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 127, 189, 254, 378, 381, 421, 762, 842, 889, 1143, 1263, 1778, 2286, 2526, 2667, 2947, 3429, 3789, 5334, 5894, 6858, 7578, 8001, 8841, 11367, 16002, 17682, 22734, 24003, 26523, 48006, 53046, 53467, 79569, 106934, 159138, 160401, 320802, 374269, 481203, 748538, 962406, 1122807, 1443609, 2245614, 2887218, 3368421, 6736842, 10105263, 20210526]

約数ペア:

[(1, 20210526), (2, 10105263), (3, 6736842), (6, 3368421), (7, 2887218), (9, 2245614), (14, 1443609), (18, 1122807), (21, 962406), (27, 748538), (42, 481203), (54, 374269), (63, 320802), (126, 160401), (127, 159138), (189, 106934), (254, 79569), (378, 53467), (381, 53046), (421, 48006), (762, 26523), (842, 24003), (889, 22734), (1143, 17682), (1263, 16002), (1778, 11367), (2286, 8841), (2526, 8001), (2667, 7578), (2947, 6858), (3429, 5894), (3789, 5334)]