21071298

素因数分解:

$2^1\times 3^1\times {\mathrm{1381}}^1\times {\mathrm{2543}}^1$

素因数の和:3929

約数の個数: 16

約数和(自身を含む): 42189696

約数和(自身を除く): 21118398

約数列:

[1, 2, 3, 6, 1381, 2543, 2762, 4143, 5086, 7629, 8286, 15258, 3511883, 7023766, 10535649, 21071298]

約数ペア:

[(1, 21071298), (2, 10535649), (3, 7023766), (6, 3511883), (1381, 15258), (2543, 8286), (2762, 7629), (4143, 5086)]