1331378

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{281}}^1$

素因数の和:409

約数の個数: 16

約数和(自身を含む): 2111616

約数和(自身を除く): 780238

約数列:

[1, 2, 23, 46, 103, 206, 281, 562, 2369, 4738, 6463, 12926, 28943, 57886, 665689, 1331378]

約数ペア:

[(1, 1331378), (2, 665689), (23, 57886), (46, 28943), (103, 12926), (206, 6463), (281, 4738), (562, 2369)]