21267556

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{1319}}^1$

素因数の和:1491

約数の個数: 24

約数和(自身を含む): 38808000

約数和(自身を除く): 17540444

約数列:

[1, 2, 4, 29, 58, 116, 139, 278, 556, 1319, 2638, 4031, 5276, 8062, 16124, 38251, 76502, 153004, 183341, 366682, 733364, 5316889, 10633778, 21267556]

約数ペア:

[(1, 21267556), (2, 10633778), (4, 5316889), (29, 733364), (58, 366682), (116, 183341), (139, 153004), (278, 76502), (556, 38251), (1319, 16124), (2638, 8062), (4031, 5276)]