18181689

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{233}}^1$

素因数の和:329

約数の個数: 24

約数和(自身を含む): 26339040

約数和(自身を除く): 8157351

約数列:

[1, 3, 19, 37, 57, 111, 233, 699, 703, 1369, 2109, 4107, 4427, 8621, 13281, 25863, 26011, 78033, 163799, 318977, 491397, 956931, 6060563, 18181689]

約数ペア:

[(1, 18181689), (3, 6060563), (19, 956931), (37, 491397), (57, 318977), (111, 163799), (233, 78033), (699, 26011), (703, 25863), (1369, 13281), (2109, 8621), (4107, 4427)]