18624389

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{601}}^1$

素因数の和:860

約数の個数: 16

約数和(自身を含む): 22538880

約数和(自身を除く): 3914491

約数列:

[1, 7, 19, 133, 233, 601, 1631, 4207, 4427, 11419, 30989, 79933, 140033, 980231, 2660627, 18624389]

約数ペア:

[(1, 18624389), (7, 2660627), (19, 980231), (133, 140033), (233, 79933), (601, 30989), (1631, 11419), (4207, 4427)]