18722678

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{42359}}^1$

素因数の和:42391

約数の個数: 16

約数和(自身を含む): 32024160

約数和(自身を除く): 13301482

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 42359, 84718, 550667, 720103, 1101334, 1440206, 9361339, 18722678]

約数ペア:

[(1, 18722678), (2, 9361339), (13, 1440206), (17, 1101334), (26, 720103), (34, 550667), (221, 84718), (442, 42359)]