20427381

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{7591}}^1$

素因数の和:7633

約数の個数: 24

約数和(自身を含む): 33161856

約数和(自身を除く): 12734475

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 299, 897, 2691, 7591, 22773, 68319, 98683, 174593, 296049, 523779, 888147, 1571337, 2269709, 6809127, 20427381]

約数ペア:

[(1, 20427381), (3, 6809127), (9, 2269709), (13, 1571337), (23, 888147), (39, 523779), (69, 296049), (117, 174593), (207, 98683), (299, 68319), (897, 22773), (2691, 7591)]