16559716

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1999}}^1$

素因数の和:2131

約数の個数: 24

約数和(自身を含む): 30800000

約数和(自身を除く): 14240284

約数列:

[1, 2, 4, 19, 38, 76, 109, 218, 436, 1999, 2071, 3998, 4142, 7996, 8284, 37981, 75962, 151924, 217891, 435782, 871564, 4139929, 8279858, 16559716]

約数ペア:

[(1, 16559716), (2, 8279858), (4, 4139929), (19, 871564), (38, 435782), (76, 217891), (109, 151924), (218, 75962), (436, 37981), (1999, 8284), (2071, 7996), (3998, 4142)]