20790891

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{70003}}^1$

素因数の和:70023

約数の個数: 16

約数和(自身を含む): 33601920

約数和(自身を除く): 12811029

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 70003, 210009, 630027, 770033, 1890081, 2310099, 6930297, 20790891]

約数ペア:

[(1, 20790891), (3, 6930297), (9, 2310099), (11, 1890081), (27, 770033), (33, 630027), (99, 210009), (297, 70003)]