21412678

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{66499}}^1$

素因数の和:66531

約数の個数: 16

約数和(自身を含む): 38304000

約数和(自身を除く): 16891322

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 66499, 132998, 465493, 930986, 1529477, 3058954, 10706339, 21412678]

約数ペア:

[(1, 21412678), (2, 10706339), (7, 3058954), (14, 1529477), (23, 930986), (46, 465493), (161, 132998), (322, 66499)]