18804128

素因数分解:

$2^5\times 7^1\times {\mathrm{127}}^1\times {\mathrm{661}}^1$

素因数の和:805

約数の個数: 48

約数和(自身を含む): 42706944

約数和(自身を除く): 23902816

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 127, 224, 254, 508, 661, 889, 1016, 1322, 1778, 2032, 2644, 3556, 4064, 4627, 5288, 7112, 9254, 10576, 14224, 18508, 21152, 28448, 37016, 74032, 83947, 148064, 167894, 335788, 587629, 671576, 1175258, 1343152, 2350516, 2686304, 4701032, 9402064, 18804128]

約数ペア:

[(1, 18804128), (2, 9402064), (4, 4701032), (7, 2686304), (8, 2350516), (14, 1343152), (16, 1175258), (28, 671576), (32, 587629), (56, 335788), (112, 167894), (127, 148064), (224, 83947), (254, 74032), (508, 37016), (661, 28448), (889, 21152), (1016, 18508), (1322, 14224), (1778, 10576), (2032, 9254), (2644, 7112), (3556, 5288), (4064, 4627)]