18732004

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{108907}}^1$

素因数の和:108954

約数の個数: 12

約数和(自身を含む): 33543664

約数和(自身を除く): 14811660

約数列:

[1, 2, 4, 43, 86, 172, 108907, 217814, 435628, 4683001, 9366002, 18732004]

約数ペア:

[(1, 18732004), (2, 9366002), (4, 4683001), (43, 435628), (86, 217814), (172, 108907)]