199904721

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{523}}^1\times {\mathrm{2963}}^1$

素因数の和:3532

約数の個数: 16

約数和(自身を含む): 273351936

約数和(自身を除く): 73447215

約数列:

[1, 3, 43, 129, 523, 1569, 2963, 8889, 22489, 67467, 127409, 382227, 1549649, 4648947, 66634907, 199904721]

約数ペア:

[(1, 199904721), (3, 66634907), (43, 4648947), (129, 1549649), (523, 382227), (1569, 127409), (2963, 67467), (8889, 22489)]