20647653

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{1571}}^1$

素因数の和:1924

約数の個数: 16

約数和(自身を含む): 29754816

約数和(自身を除く): 9107163

約数列:

[1, 3, 13, 39, 337, 1011, 1571, 4381, 4713, 13143, 20423, 61269, 529427, 1588281, 6882551, 20647653]

約数ペア:

[(1, 20647653), (3, 6882551), (13, 1588281), (39, 529427), (337, 61269), (1011, 20423), (1571, 13143), (4381, 4713)]