21257994

素因数分解:

$2^1\times 3^1\times {\mathrm{269}}^1\times {\mathrm{13171}}^1$

素因数の和:13445

約数の個数: 16

約数和(自身を含む): 42677280

約数和(自身を除く): 21419286

約数列:

[1, 2, 3, 6, 269, 538, 807, 1614, 13171, 26342, 39513, 79026, 3542999, 7085998, 10628997, 21257994]

約数ペア:

[(1, 21257994), (2, 10628997), (3, 7085998), (6, 3542999), (269, 79026), (538, 39513), (807, 26342), (1614, 13171)]