20109685

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{1531}}^1$

素因数の和:1644

約数の個数: 16

約数和(自身を含む): 25149312

約数和(自身を除く): 5039627

約数列:

[1, 5, 37, 71, 185, 355, 1531, 2627, 7655, 13135, 56647, 108701, 283235, 543505, 4021937, 20109685]

約数ペア:

[(1, 20109685), (5, 4021937), (37, 543505), (71, 283235), (185, 108701), (355, 56647), (1531, 13135), (2627, 7655)]