18891335

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{2039}}^1$

素因数の和:2170

約数の個数: 16

約数和(自身を含む): 24235200

約数和(自身を除く): 5343865

約数列:

[1, 5, 17, 85, 109, 545, 1853, 2039, 9265, 10195, 34663, 173315, 222251, 1111255, 3778267, 18891335]

約数ペア:

[(1, 18891335), (5, 3778267), (17, 1111255), (85, 222251), (109, 173315), (545, 34663), (1853, 10195), (2039, 9265)]