209712189

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{17657}}^1$

素因数の和:17804

約数の個数: 16

約数和(自身を含む): 289873728

約数和(自身を除く): 80161539

約数列:

[1, 3, 37, 107, 111, 321, 3959, 11877, 17657, 52971, 653309, 1889299, 1959927, 5667897, 69904063, 209712189]

約数ペア:

[(1, 209712189), (3, 69904063), (37, 5667897), (107, 1959927), (111, 1889299), (321, 653309), (3959, 52971), (11877, 17657)]