18275187

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 30730752

約数和(自身を除く): 12455565

約数列:

[1, 3, 7, 17, 21, 49, 51, 71, 103, 119, 147, 213, 309, 357, 497, 721, 833, 1207, 1491, 1751, 2163, 2499, 3479, 3621, 5047, 5253, 7313, 8449, 10437, 12257, 15141, 21939, 25347, 36771, 51191, 59143, 85799, 124321, 153573, 177429, 257397, 358337, 372963, 870247, 1075011, 2610741, 6091729, 18275187]

約数ペア:

[(1, 18275187), (3, 6091729), (7, 2610741), (17, 1075011), (21, 870247), (49, 372963), (51, 358337), (71, 257397), (103, 177429), (119, 153573), (147, 124321), (213, 85799), (309, 59143), (357, 51191), (497, 36771), (721, 25347), (833, 21939), (1207, 15141), (1491, 12257), (1751, 10437), (2163, 8449), (2499, 7313), (3479, 5253), (3621, 5047)]