20322171

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{2819}}^1$

素因数の和:2920

約数の個数: 20

約数和(自身を含む): 30709800

約数和(自身を除く): 10387629

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 2819, 7209, 8457, 25371, 76113, 228339, 250891, 752673, 2258019, 6774057, 20322171]

約数ペア:

[(1, 20322171), (3, 6774057), (9, 2258019), (27, 752673), (81, 250891), (89, 228339), (267, 76113), (801, 25371), (2403, 8457), (2819, 7209)]