18895448

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 42336000

約数和(自身を除く): 23440552

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 83, 88, 104, 143, 166, 199, 286, 332, 398, 572, 664, 796, 913, 1079, 1144, 1592, 1826, 2158, 2189, 2587, 3652, 4316, 4378, 5174, 7304, 8632, 8756, 10348, 11869, 16517, 17512, 20696, 23738, 28457, 33034, 47476, 56914, 66068, 94952, 113828, 132136, 181687, 214721, 227656, 363374, 429442, 726748, 858884, 1453496, 1717768, 2361931, 4723862, 9447724, 18895448]

約数ペア:

[(1, 18895448), (2, 9447724), (4, 4723862), (8, 2361931), (11, 1717768), (13, 1453496), (22, 858884), (26, 726748), (44, 429442), (52, 363374), (83, 227656), (88, 214721), (104, 181687), (143, 132136), (166, 113828), (199, 94952), (286, 66068), (332, 56914), (398, 47476), (572, 33034), (664, 28457), (796, 23738), (913, 20696), (1079, 17512), (1144, 16517), (1592, 11869), (1826, 10348), (2158, 8756), (2189, 8632), (2587, 7304), (3652, 5174), (4316, 4378)]