20705641

素因数分解:

${\mathrm{11}}^2\times {\mathrm{211}}^1\times {\mathrm{811}}^1$

素因数の和:1044

約数の個数: 12

約数和(自身を含む): 22895152

約数和(自身を除く): 2189511

約数列:

[1, 11, 121, 211, 811, 2321, 8921, 25531, 98131, 171121, 1882331, 20705641]

約数ペア:

[(1, 20705641), (11, 1882331), (121, 171121), (211, 98131), (811, 25531), (2321, 8921)]