20655891

素因数分解:

$3^4\times {\mathrm{271}}^1\times {\mathrm{941}}^1$

素因数の和:1224

約数の個数: 20

約数和(自身を含む): 31003104

約数和(自身を除く): 10347213

約数列:

[1, 3, 9, 27, 81, 271, 813, 941, 2439, 2823, 7317, 8469, 21951, 25407, 76221, 255011, 765033, 2295099, 6885297, 20655891]

約数ペア:

[(1, 20655891), (3, 6885297), (9, 2295099), (27, 765033), (81, 255011), (271, 76221), (813, 25407), (941, 21951), (2439, 8469), (2823, 7317)]