20654579

素因数分解:

${\mathrm{11}}^2\times {\mathrm{211}}^1\times {\mathrm{809}}^1$

素因数の和:1042

約数の個数: 12

約数和(自身を含む): 22838760

約数和(自身を除く): 2184181

約数列:

[1, 11, 121, 211, 809, 2321, 8899, 25531, 97889, 170699, 1877689, 20654579]

約数ペア:

[(1, 20654579), (11, 1877689), (121, 170699), (211, 97889), (809, 25531), (2321, 8899)]