21876428

素因数分解:

$2^2\times 7^1\times {\mathrm{781301}}^1$

素因数の和:781312

約数の個数: 12

約数和(自身を含む): 43752912

約数和(自身を除く): 21876484

約数列:

[1, 2, 4, 7, 14, 28, 781301, 1562602, 3125204, 5469107, 10938214, 21876428]

約数ペア:

[(1, 21876428), (2, 10938214), (4, 5469107), (7, 3125204), (14, 1562602), (28, 781301)]