20019174921

素因数分解:

$3^3\times {\mathrm{331}}^1\times {\mathrm{571}}^1\times {\mathrm{3923}}^1$

素因数の和:4834

約数の個数: 32

約数和(自身を含む): 29807331840

約数和(自身を除く): 9788156919

約数列:

[1, 3, 9, 27, 331, 571, 993, 1713, 2979, 3923, 5139, 8937, 11769, 15417, 35307, 105921, 189001, 567003, 1298513, 1701009, 2240033, 3895539, 5103027, 6720099, 11686617, 20160297, 35059851, 60480891, 741450923, 2224352769, 6673058307, 20019174921]

約数ペア:

[(1, 20019174921), (3, 6673058307), (9, 2224352769), (27, 741450923), (331, 60480891), (571, 35059851), (993, 20160297), (1713, 11686617), (2979, 6720099), (3923, 5103027), (5139, 3895539), (8937, 2240033), (11769, 1701009), (15417, 1298513), (35307, 567003), (105921, 189001)]