21819868

素因数分解:

$2^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{7283}}^1$

素因数の和:7401

約数の個数: 24

約数和(自身を含む): 44053632

約数和(自身を除く): 22233764

約数列:

[1, 2, 4, 7, 14, 28, 107, 214, 428, 749, 1498, 2996, 7283, 14566, 29132, 50981, 101962, 203924, 779281, 1558562, 3117124, 5454967, 10909934, 21819868]

約数ペア:

[(1, 21819868), (2, 10909934), (4, 5454967), (7, 3117124), (14, 1558562), (28, 779281), (107, 203924), (214, 101962), (428, 50981), (749, 29132), (1498, 14566), (2996, 7283)]