18863768

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{271}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 44651520

約数和(自身を除く): 25787752

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 113, 154, 226, 271, 308, 452, 542, 616, 791, 904, 1084, 1243, 1582, 1897, 2168, 2486, 2981, 3164, 3794, 4972, 5962, 6328, 7588, 8701, 9944, 11924, 15176, 17402, 20867, 23848, 30623, 34804, 41734, 61246, 69608, 83468, 122492, 166936, 214361, 244984, 336853, 428722, 673706, 857444, 1347412, 1714888, 2357971, 2694824, 4715942, 9431884, 18863768]

約数ペア:

[(1, 18863768), (2, 9431884), (4, 4715942), (7, 2694824), (8, 2357971), (11, 1714888), (14, 1347412), (22, 857444), (28, 673706), (44, 428722), (56, 336853), (77, 244984), (88, 214361), (113, 166936), (154, 122492), (226, 83468), (271, 69608), (308, 61246), (452, 41734), (542, 34804), (616, 30623), (791, 23848), (904, 20867), (1084, 17402), (1243, 15176), (1582, 11924), (1897, 9944), (2168, 8701), (2486, 7588), (2981, 6328), (3164, 5962), (3794, 4972)]