18999512

素因数分解:

$2^3\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2161}}^1$

素因数の和:2331

約数の個数: 32

約数和(自身を含む): 40991520

約数和(自身を除く): 21992008

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 157, 314, 628, 1099, 1256, 2161, 2198, 4322, 4396, 8644, 8792, 15127, 17288, 30254, 60508, 121016, 339277, 678554, 1357108, 2374939, 2714216, 4749878, 9499756, 18999512]

約数ペア:

[(1, 18999512), (2, 9499756), (4, 4749878), (7, 2714216), (8, 2374939), (14, 1357108), (28, 678554), (56, 339277), (157, 121016), (314, 60508), (628, 30254), (1099, 17288), (1256, 15127), (2161, 8792), (2198, 8644), (4322, 4396)]