18187910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139907}}^1$

素因数の和:139927

約数の個数: 16

約数和(自身を含む): 35256816

約数和(自身を除く): 17068906

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 139907, 279814, 699535, 1399070, 1818791, 3637582, 9093955, 18187910]

約数ペア:

[(1, 18187910), (2, 9093955), (5, 3637582), (10, 1818791), (13, 1399070), (26, 699535), (65, 279814), (130, 139907)]