18708963

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{68531}}^1$

素因数の和:68554

約数の個数: 16

約数和(自身を含む): 30702336

約数和(自身を除く): 11993373

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 68531, 205593, 479717, 890903, 1439151, 2672709, 6236321, 18708963]

約数ペア:

[(1, 18708963), (3, 6236321), (7, 2672709), (13, 1439151), (21, 890903), (39, 479717), (91, 205593), (273, 68531)]