21828687

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{1723}}^1$

素因数の和:1870

約数の個数: 16

約数和(自身を含む): 30121728

約数和(自身を除く): 8293041

約数列:

[1, 3, 41, 103, 123, 309, 1723, 4223, 5169, 12669, 70643, 177469, 211929, 532407, 7276229, 21828687]

約数ペア:

[(1, 21828687), (3, 7276229), (41, 532407), (103, 211929), (123, 177469), (309, 70643), (1723, 12669), (4223, 5169)]