21095396

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{2087}}^1$

素因数の和:2136

約数の個数: 36

約数和(自身を含む): 44549568

約数和(自身を除く): 23454172

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 361, 532, 722, 1444, 2087, 2527, 4174, 5054, 8348, 10108, 14609, 29218, 39653, 58436, 79306, 158612, 277571, 555142, 753407, 1110284, 1506814, 3013628, 5273849, 10547698, 21095396]

約数ペア:

[(1, 21095396), (2, 10547698), (4, 5273849), (7, 3013628), (14, 1506814), (19, 1110284), (28, 753407), (38, 555142), (76, 277571), (133, 158612), (266, 79306), (361, 58436), (532, 39653), (722, 29218), (1444, 14609), (2087, 10108), (2527, 8348), (4174, 5054)]