20806863

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{90073}}^1$

素因数の和:90094

約数の個数: 16

約数和(自身を含む): 34588416

約数和(自身を除く): 13781553

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 90073, 270219, 630511, 990803, 1891533, 2972409, 6935621, 20806863]

約数ペア:

[(1, 20806863), (3, 6935621), (7, 2972409), (11, 1891533), (21, 990803), (33, 630511), (77, 270219), (231, 90073)]