18978674

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{66359}}^1$

素因数の和:66385

約数の個数: 16

約数和(自身を含む): 33445440

約数和(自身を除く): 14466766

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 66359, 132718, 729949, 862667, 1459898, 1725334, 9489337, 18978674]

約数ペア:

[(1, 18978674), (2, 9489337), (11, 1725334), (13, 1459898), (22, 862667), (26, 729949), (143, 132718), (286, 66359)]