21859981

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{1069}}^1$

素因数の和:1117

約数の個数: 18

約数和(自身を含む): 26042730

約数和(自身を除く): 4182749

約数列:

[1, 11, 13, 121, 143, 169, 1069, 1573, 1859, 11759, 13897, 20449, 129349, 152867, 180661, 1681537, 1987271, 21859981]

約数ペア:

[(1, 21859981), (11, 1987271), (13, 1681537), (121, 180661), (143, 152867), (169, 129349), (1069, 20449), (1573, 13897), (1859, 11759)]