20561651

素因数分解:

${\mathrm{11}}^2\times {\mathrm{109}}^1\times {\mathrm{1559}}^1$

素因数の和:1690

約数の個数: 12

約数和(自身を含む): 22822800

約数和(自身を除く): 2261149

約数列:

[1, 11, 109, 121, 1199, 1559, 13189, 17149, 169931, 188639, 1869241, 20561651]

約数ペア:

[(1, 20561651), (11, 1869241), (109, 188639), (121, 169931), (1199, 17149), (1559, 13189)]