18163859

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:335

約数の個数: 24

約数和(自身を含む): 22457088

約数和(自身を除く): 4293229

約数列:

[1, 7, 23, 49, 71, 161, 227, 497, 1127, 1589, 1633, 3479, 5221, 11123, 11431, 16117, 36547, 80017, 112819, 255829, 370691, 789733, 2594837, 18163859]

約数ペア:

[(1, 18163859), (7, 2594837), (23, 789733), (49, 370691), (71, 255829), (161, 112819), (227, 80017), (497, 36547), (1127, 16117), (1589, 11431), (1633, 11123), (3479, 5221)]