198946909

素因数分解:

$7^2\times {\mathrm{109}}^1\times {\mathrm{193}}^2$

素因数の和:509

約数の個数: 18

約数和(自身を含む): 234767610

約数和(自身を除く): 35820701

約数列:

[1, 7, 49, 109, 193, 763, 1351, 5341, 9457, 21037, 37249, 147259, 260743, 1030813, 1825201, 4060141, 28420987, 198946909]

約数ペア:

[(1, 198946909), (7, 28420987), (49, 4060141), (109, 1825201), (193, 1030813), (763, 260743), (1351, 147259), (5341, 37249), (9457, 21037)]