18718218

素因数分解:

$2^1\times 3^2\times {\mathrm{1039901}}^1$

素因数の和:1039909

約数の個数: 12

約数和(自身を含む): 40556178

約数和(自身を除く): 21837960

約数列:

[1, 2, 3, 6, 9, 18, 1039901, 2079802, 3119703, 6239406, 9359109, 18718218]

約数ペア:

[(1, 18718218), (2, 9359109), (3, 6239406), (6, 3119703), (9, 2079802), (18, 1039901)]