20808579

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{719}}^1\times {\mathrm{877}}^1$

素因数の和:1610

約数の個数: 16

約数和(自身を含む): 30343680

約数和(自身を除く): 9535101

約数列:

[1, 3, 11, 33, 719, 877, 2157, 2631, 7909, 9647, 23727, 28941, 630563, 1891689, 6936193, 20808579]

約数ペア:

[(1, 20808579), (3, 6936193), (11, 1891689), (33, 630563), (719, 28941), (877, 23727), (2157, 9647), (2631, 7909)]