20988781

素因数分解:

${\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{1949}}^1$

素因数の和:2060

約数の個数: 12

約数和(自身を含む): 23341500

約数和(自身を除く): 2352719

約数列:

[1, 11, 89, 121, 979, 1949, 10769, 21439, 173461, 235829, 1908071, 20988781]

約数ペア:

[(1, 20988781), (11, 1908071), (89, 235829), (121, 173461), (979, 21439), (1949, 10769)]