20781074

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{281}}^1\times {\mathrm{359}}^1$

素因数の和:745

約数の個数: 16

約数和(自身を含む): 31674240

約数和(自身を除く): 10893166

約数列:

[1, 2, 103, 206, 281, 359, 562, 718, 28943, 36977, 57886, 73954, 100879, 201758, 10390537, 20781074]

約数ペア:

[(1, 20781074), (2, 10390537), (103, 201758), (206, 100879), (281, 73954), (359, 57886), (562, 36977), (718, 28943)]