21171249

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{19441}}^1$

素因数の和:19469

約数の個数: 18

約数和(自身を含む): 33615218

約数和(自身を除く): 12443969

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 19441, 58323, 174969, 213851, 641553, 1924659, 2352361, 7057083, 21171249]

約数ペア:

[(1, 21171249), (3, 7057083), (9, 2352361), (11, 1924659), (33, 641553), (99, 213851), (121, 174969), (363, 58323), (1089, 19441)]