20458521

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{20479}}^1$

素因数の和:20525

約数の個数: 16

約数和(自身を含む): 31129600

約数和(自身を除く): 10671079

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 20479, 61437, 184311, 552933, 757723, 2273169, 6819507, 20458521]

約数ペア:

[(1, 20458521), (3, 6819507), (9, 2273169), (27, 757723), (37, 552933), (111, 184311), (333, 61437), (999, 20479)]