20392479

素因数分解:

$3^4\times {\mathrm{271}}^1\times {\mathrm{929}}^1$

素因数の和:1212

約数の個数: 20

約数和(自身を含む): 30608160

約数和(自身を除く): 10215681

約数列:

[1, 3, 9, 27, 81, 271, 813, 929, 2439, 2787, 7317, 8361, 21951, 25083, 75249, 251759, 755277, 2265831, 6797493, 20392479]

約数ペア:

[(1, 20392479), (3, 6797493), (9, 2265831), (27, 755277), (81, 251759), (271, 75249), (813, 25083), (929, 21951), (2439, 8361), (2787, 7317)]