20109155

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{2791}}^1$

素因数の和:2938

約数の個数: 16

約数和(自身を含む): 26535168

約数和(自身を除く): 6426013

約数列:

[1, 5, 11, 55, 131, 655, 1441, 2791, 7205, 13955, 30701, 153505, 365621, 1828105, 4021831, 20109155]

約数ペア:

[(1, 20109155), (5, 4021831), (11, 1828105), (55, 365621), (131, 153505), (655, 30701), (1441, 13955), (2791, 7205)]