18874278

素因数分解:

$2^1\times 3^2\times {\mathrm{1048571}}^1$

素因数の和:1048579

約数の個数: 12

約数和(自身を含む): 40894308

約数和(自身を除く): 22020030

約数列:

[1, 2, 3, 6, 9, 18, 1048571, 2097142, 3145713, 6291426, 9437139, 18874278]

約数ペア:

[(1, 18874278), (2, 9437139), (3, 6291426), (6, 3145713), (9, 2097142), (18, 1048571)]