20019069

素因数分解:

$3^6\times 7^1\times {\mathrm{3923}}^1$

素因数の和:3948

約数の個数: 28

約数和(自身を含む): 34311456

約数和(自身を除く): 14292387

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 3923, 5103, 11769, 27461, 35307, 82383, 105921, 247149, 317763, 741447, 953289, 2224341, 2859867, 6673023, 20019069]

約数ペア:

[(1, 20019069), (3, 6673023), (7, 2859867), (9, 2224341), (21, 953289), (27, 741447), (63, 317763), (81, 247149), (189, 105921), (243, 82383), (567, 35307), (729, 27461), (1701, 11769), (3923, 5103)]