20280854

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{433}}^1\times {\mathrm{2129}}^1$

素因数の和:2575

約数の個数: 16

約数和(自身を含む): 33279120

約数和(自身を除く): 12998266

約数列:

[1, 2, 11, 22, 433, 866, 2129, 4258, 4763, 9526, 23419, 46838, 921857, 1843714, 10140427, 20280854]

約数ペア:

[(1, 20280854), (2, 10140427), (11, 1843714), (22, 921857), (433, 46838), (866, 23419), (2129, 9526), (4258, 4763)]