209855907

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{109471}}^1$

素因数の和:109551

約数の個数: 16

約数和(自身を含む): 315279360

約数和(自身を除く): 105423453

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 109471, 328413, 985239, 2955717, 7772441, 23317323, 69951969, 209855907]

約数ペア:

[(1, 209855907), (3, 69951969), (9, 23317323), (27, 7772441), (71, 2955717), (213, 985239), (639, 328413), (1917, 109471)]