20681304

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{479}}^1$

素因数の和:752

約数の個数: 64

約数和(自身を含む): 59443200

約数和(自身を除く): 38761896

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 257, 479, 514, 771, 958, 1028, 1437, 1542, 1799, 1916, 2056, 2874, 3084, 3353, 3598, 3832, 5397, 5748, 6168, 6706, 7196, 10059, 10794, 11496, 13412, 14392, 20118, 21588, 26824, 40236, 43176, 80472, 123103, 246206, 369309, 492412, 738618, 861721, 984824, 1477236, 1723442, 2585163, 2954472, 3446884, 5170326, 6893768, 10340652, 20681304]

約数ペア:

[(1, 20681304), (2, 10340652), (3, 6893768), (4, 5170326), (6, 3446884), (7, 2954472), (8, 2585163), (12, 1723442), (14, 1477236), (21, 984824), (24, 861721), (28, 738618), (42, 492412), (56, 369309), (84, 246206), (168, 123103), (257, 80472), (479, 43176), (514, 40236), (771, 26824), (958, 21588), (1028, 20118), (1437, 14392), (1542, 13412), (1799, 11496), (1916, 10794), (2056, 10059), (2874, 7196), (3084, 6706), (3353, 6168), (3598, 5748), (3832, 5397)]