211279981

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{10009}}^1$

素因数の和:10140

約数の個数: 16

約数和(自身を含む): 245044800

約数和(自身を除く): 33764819

約数列:

[1, 11, 19, 101, 209, 1111, 1919, 10009, 21109, 110099, 190171, 1010909, 2091881, 11119999, 19207271, 211279981]

約数ペア:

[(1, 211279981), (11, 19207271), (19, 11119999), (101, 2091881), (209, 1010909), (1111, 190171), (1919, 110099), (10009, 21109)]