18859381

素因数分解:

${\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:388

約数の個数: 16

約数和(自身を含む): 20641600

約数和(自身を除く): 1782219

約数列:

[1, 19, 37, 139, 193, 703, 2641, 3667, 5143, 7141, 26827, 97717, 135679, 509713, 992599, 18859381]

約数ペア:

[(1, 18859381), (19, 992599), (37, 509713), (139, 135679), (193, 97717), (703, 26827), (2641, 7141), (3667, 5143)]