20509701

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{2699}}^1$

素因数の和:2868

約数の個数: 16

約数和(自身を含む): 29160000

約数和(自身を除く): 8650299

約数列:

[1, 3, 17, 51, 149, 447, 2533, 2699, 7599, 8097, 45883, 137649, 402151, 1206453, 6836567, 20509701]

約数ペア:

[(1, 20509701), (3, 6836567), (17, 1206453), (51, 402151), (149, 137649), (447, 45883), (2533, 8097), (2699, 7599)]