20578488

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{347}}^1\times {\mathrm{353}}^1$

素因数の和:716

約数の個数: 64

約数和(自身を含む): 59132160

約数和(自身を除く): 38553672

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 347, 353, 694, 706, 1041, 1059, 1388, 1412, 2082, 2118, 2429, 2471, 2776, 2824, 4164, 4236, 4858, 4942, 7287, 7413, 8328, 8472, 9716, 9884, 14574, 14826, 19432, 19768, 29148, 29652, 58296, 59304, 122491, 244982, 367473, 489964, 734946, 857437, 979928, 1469892, 1714874, 2572311, 2939784, 3429748, 5144622, 6859496, 10289244, 20578488]

約数ペア:

[(1, 20578488), (2, 10289244), (3, 6859496), (4, 5144622), (6, 3429748), (7, 2939784), (8, 2572311), (12, 1714874), (14, 1469892), (21, 979928), (24, 857437), (28, 734946), (42, 489964), (56, 367473), (84, 244982), (168, 122491), (347, 59304), (353, 58296), (694, 29652), (706, 29148), (1041, 19768), (1059, 19432), (1388, 14826), (1412, 14574), (2082, 9884), (2118, 9716), (2429, 8472), (2471, 8328), (2776, 7413), (2824, 7287), (4164, 4942), (4236, 4858)]