217541639

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{12269}}^1$

素因数の和:12442

約数の個数: 16

約数和(自身を含む): 265032000

約数和(自身を除く): 47490361

約数列:

[1, 7, 17, 119, 149, 1043, 2533, 12269, 17731, 85883, 208573, 1460011, 1828081, 12796567, 31077377, 217541639]

約数ペア:

[(1, 217541639), (7, 31077377), (17, 12796567), (119, 1828081), (149, 1460011), (1043, 208573), (2533, 85883), (12269, 17731)]