21086072

素因数分解:

$2^3\times 7^2\times {\mathrm{53791}}^1$

素因数の和:53811

約数の個数: 24

約数和(自身を含む): 45992160

約数和(自身を除く): 24906088

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 53791, 107582, 215164, 376537, 430328, 753074, 1506148, 2635759, 3012296, 5271518, 10543036, 21086072]

約数ペア:

[(1, 21086072), (2, 10543036), (4, 5271518), (7, 3012296), (8, 2635759), (14, 1506148), (28, 753074), (49, 430328), (56, 376537), (98, 215164), (196, 107582), (392, 53791)]