21090047

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{3889}}^1$

素因数の和:3946

約数の個数: 16

約数和(自身を含む): 25207200

約数和(自身を除く): 4117153

約数列:

[1, 11, 17, 29, 187, 319, 493, 3889, 5423, 42779, 66113, 112781, 727243, 1240591, 1917277, 21090047]

約数ペア:

[(1, 21090047), (11, 1917277), (17, 1240591), (29, 727243), (187, 112781), (319, 66113), (493, 42779), (3889, 5423)]