19464939

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 31999968

約数和(自身を除く): 12535029

約数列:

[1, 3, 9, 13, 39, 43, 53, 73, 117, 129, 159, 219, 387, 477, 559, 657, 689, 949, 1677, 2067, 2279, 2847, 3139, 3869, 5031, 6201, 6837, 8541, 9417, 11607, 20511, 28251, 29627, 34821, 40807, 50297, 88881, 122421, 150891, 166367, 266643, 367263, 452673, 499101, 1497303, 2162771, 6488313, 19464939]

約数ペア:

[(1, 19464939), (3, 6488313), (9, 2162771), (13, 1497303), (39, 499101), (43, 452673), (53, 367263), (73, 266643), (117, 166367), (129, 150891), (159, 122421), (219, 88881), (387, 50297), (477, 40807), (559, 34821), (657, 29627), (689, 28251), (949, 20511), (1677, 11607), (2067, 9417), (2279, 8541), (2847, 6837), (3139, 6201), (3869, 5031)]