18126584

素因数分解:

$2^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 22515976

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 56, 71, 94, 97, 142, 188, 194, 284, 329, 376, 388, 497, 568, 658, 679, 776, 994, 1316, 1358, 1988, 2632, 2716, 3337, 3976, 4559, 5432, 6674, 6887, 9118, 13348, 13774, 18236, 23359, 26696, 27548, 31913, 36472, 46718, 48209, 55096, 63826, 93436, 96418, 127652, 186872, 192836, 255304, 323689, 385672, 647378, 1294756, 2265823, 2589512, 4531646, 9063292, 18126584]

約数ペア:

[(1, 18126584), (2, 9063292), (4, 4531646), (7, 2589512), (8, 2265823), (14, 1294756), (28, 647378), (47, 385672), (56, 323689), (71, 255304), (94, 192836), (97, 186872), (142, 127652), (188, 96418), (194, 93436), (284, 63826), (329, 55096), (376, 48209), (388, 46718), (497, 36472), (568, 31913), (658, 27548), (679, 26696), (776, 23359), (994, 18236), (1316, 13774), (1358, 13348), (1988, 9118), (2632, 6887), (2716, 6674), (3337, 5432), (3976, 4559)]