20105901

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{2789}}^1$

素因数の和:2890

約数の個数: 20

約数和(自身を含む): 30383100

約数和(自身を除く): 10277199

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 2789, 7209, 8367, 25101, 75303, 225909, 248221, 744663, 2233989, 6701967, 20105901]

約数ペア:

[(1, 20105901), (3, 6701967), (9, 2233989), (27, 744663), (81, 248221), (89, 225909), (267, 75303), (801, 25101), (2403, 8367), (2789, 7209)]