21084489

素因数分解:

$3^3\times {\mathrm{269}}^1\times {\mathrm{2903}}^1$

素因数の和:3181

約数の個数: 16

約数和(自身を含む): 31363200

約数和(自身を除く): 10278711

約数列:

[1, 3, 9, 27, 269, 807, 2421, 2903, 7263, 8709, 26127, 78381, 780907, 2342721, 7028163, 21084489]

約数ペア:

[(1, 21084489), (3, 7028163), (9, 2342721), (27, 780907), (269, 78381), (807, 26127), (2421, 8709), (2903, 7263)]