21354844

素因数分解:

$2^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{6997}}^1$

素因数の和:7117

約数の個数: 24

約数和(自身を含む): 43107680

約数和(自身を除く): 21752836

約数列:

[1, 2, 4, 7, 14, 28, 109, 218, 436, 763, 1526, 3052, 6997, 13994, 27988, 48979, 97958, 195916, 762673, 1525346, 3050692, 5338711, 10677422, 21354844]

約数ペア:

[(1, 21354844), (2, 10677422), (4, 5338711), (7, 3050692), (14, 1525346), (28, 762673), (109, 195916), (218, 97958), (436, 48979), (763, 27988), (1526, 13994), (3052, 6997)]