18995778

素因数分解:

$2^1\times 3^2\times {\mathrm{1055321}}^1$

素因数の和:1055329

約数の個数: 12

約数和(自身を含む): 41157558

約数和(自身を除く): 22161780

約数列:

[1, 2, 3, 6, 9, 18, 1055321, 2110642, 3165963, 6331926, 9497889, 18995778]

約数ペア:

[(1, 18995778), (2, 9497889), (3, 6331926), (6, 3165963), (9, 2110642), (18, 1055321)]