20099907

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{10789}}^1$

素因数の和:10824

約数の個数: 20

約数和(自身を含む): 31334160

約数和(自身を除く): 11234253

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 10789, 32367, 97101, 248147, 291303, 744441, 873909, 2233323, 6699969, 20099907]

約数ペア:

[(1, 20099907), (3, 6699969), (9, 2233323), (23, 873909), (27, 744441), (69, 291303), (81, 248147), (207, 97101), (621, 32367), (1863, 10789)]