12990439

素因数分解:

$7^3\times {\mathrm{11}}^2\times {\mathrm{313}}^1$

素因数の和:356

約数の個数: 24

約数和(自身を含む): 16704800

約数和(自身を除く): 3714361

約数列:

[1, 7, 11, 49, 77, 121, 313, 343, 539, 847, 2191, 3443, 3773, 5929, 15337, 24101, 37873, 41503, 107359, 168707, 265111, 1180949, 1855777, 12990439]

約数ペア:

[(1, 12990439), (7, 1855777), (11, 1180949), (49, 265111), (77, 168707), (121, 107359), (313, 41503), (343, 37873), (539, 24101), (847, 15337), (2191, 5929), (3443, 3773)]