18888957

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{10139}}^1$

素因数の和:10174

約数の個数: 20

約数和(自身を含む): 29446560

約数和(自身を除く): 10557603

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 10139, 30417, 91251, 233197, 273753, 699591, 821259, 2098773, 6296319, 18888957]

約数ペア:

[(1, 18888957), (3, 6296319), (9, 2098773), (23, 821259), (27, 699591), (69, 273753), (81, 233197), (207, 91251), (621, 30417), (1863, 10139)]