21098891

素因数分解:

${\mathrm{11}}^2\times {\mathrm{127}}^1\times {\mathrm{1373}}^1$

素因数の和:1522

約数の個数: 12

約数和(自身を含む): 23390976

約数和(自身を除く): 2292085

約数列:

[1, 11, 121, 127, 1373, 1397, 15103, 15367, 166133, 174371, 1918081, 21098891]

約数ペア:

[(1, 21098891), (11, 1918081), (121, 174371), (127, 166133), (1373, 15367), (1397, 15103)]