21150488

素因数分解:

$2^3\times {\mathrm{311}}^1\times {\mathrm{8501}}^1$

素因数の和:8818

約数の個数: 16

約数和(自身を含む): 39789360

約数和(自身を除く): 18638872

約数列:

[1, 2, 4, 8, 311, 622, 1244, 2488, 8501, 17002, 34004, 68008, 2643811, 5287622, 10575244, 21150488]

約数ペア:

[(1, 21150488), (2, 10575244), (4, 5287622), (8, 2643811), (311, 68008), (622, 34004), (1244, 17002), (2488, 8501)]