21685916

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{40763}}^1$

素因数の和:40793

約数の個数: 24

約数和(自身を含む): 45655680

約数和(自身を除く): 23969764

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 40763, 81526, 163052, 285341, 570682, 774497, 1141364, 1548994, 3097988, 5421479, 10842958, 21685916]

約数ペア:

[(1, 21685916), (2, 10842958), (4, 5421479), (7, 3097988), (14, 1548994), (19, 1141364), (28, 774497), (38, 570682), (76, 285341), (133, 163052), (266, 81526), (532, 40763)]