18465891

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{2473}}^1$

素因数の和:2626

約数の個数: 16

約数和(自身を含む): 26125440

約数和(自身を除く): 7659549

約数列:

[1, 3, 19, 57, 131, 393, 2473, 2489, 7419, 7467, 46987, 140961, 323963, 971889, 6155297, 18465891]

約数ペア:

[(1, 18465891), (3, 6155297), (19, 971889), (57, 323963), (131, 140961), (393, 46987), (2473, 7467), (2489, 7419)]