20641863

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{1123}}^1$

素因数の和:1694

約数の個数: 16

約数和(自身を含む): 30105216

約数和(自身を除く): 9463353

約数列:

[1, 3, 11, 33, 557, 1123, 1671, 3369, 6127, 12353, 18381, 37059, 625511, 1876533, 6880621, 20641863]

約数ペア:

[(1, 20641863), (3, 6880621), (11, 1876533), (33, 625511), (557, 37059), (1123, 18381), (1671, 12353), (3369, 6127)]