287000001

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{373}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 453682944

約数和(自身を除く): 166682943

約数列:

[1, 3, 9, 17, 47, 51, 107, 141, 153, 321, 373, 423, 799, 963, 1119, 1819, 2397, 3357, 5029, 5457, 6341, 7191, 15087, 16371, 17531, 19023, 39911, 45261, 52593, 57069, 85493, 119733, 157779, 256479, 298027, 359199, 678487, 769437, 894081, 1875817, 2035461, 2682243, 5627451, 6106383, 16882353, 31888889, 95666667, 287000001]

約数ペア:

[(1, 287000001), (3, 95666667), (9, 31888889), (17, 16882353), (47, 6106383), (51, 5627451), (107, 2682243), (141, 2035461), (153, 1875817), (321, 894081), (373, 769437), (423, 678487), (799, 359199), (963, 298027), (1119, 256479), (1819, 157779), (2397, 119733), (3357, 85493), (5029, 57069), (5457, 52593), (6341, 45261), (7191, 39911), (15087, 19023), (16371, 17531)]