18691758

素因数分解:

$2^1\times 3^2\times {\mathrm{661}}^1\times {\mathrm{1571}}^1$

素因数の和:2240

約数の個数: 24

約数和(自身を含む): 40585896

約数和(自身を除く): 21894138

約数列:

[1, 2, 3, 6, 9, 18, 661, 1322, 1571, 1983, 3142, 3966, 4713, 5949, 9426, 11898, 14139, 28278, 1038431, 2076862, 3115293, 6230586, 9345879, 18691758]

約数ペア:

[(1, 18691758), (2, 9345879), (3, 6230586), (6, 3115293), (9, 2076862), (18, 1038431), (661, 28278), (1322, 14139), (1571, 11898), (1983, 9426), (3142, 5949), (3966, 4713)]