18921496321

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{839}}^1\times {\mathrm{247829}}^1$

素因数の和:248688

約数の個数: 16

約数和(自身を含む): 23315846400

約数和(自身を除く): 4394350079

約数列:

[1, 7, 13, 91, 839, 5873, 10907, 76349, 247829, 1734803, 3221777, 22552439, 207928531, 1455499717, 2703070903, 18921496321]

約数ペア:

[(1, 18921496321), (7, 2703070903), (13, 1455499717), (91, 207928531), (839, 22552439), (5873, 3221777), (10907, 1734803), (76349, 247829)]