21185556

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{252209}}^1$

素因数の和:252223

約数の個数: 24

約数和(自身を含む): 56495040

約数和(自身を除く): 35309484

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 252209, 504418, 756627, 1008836, 1513254, 1765463, 3026508, 3530926, 5296389, 7061852, 10592778, 21185556]

約数ペア:

[(1, 21185556), (2, 10592778), (3, 7061852), (4, 5296389), (6, 3530926), (7, 3026508), (12, 1765463), (14, 1513254), (21, 1008836), (28, 756627), (42, 504418), (84, 252209)]