21044044

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{5407}}^1$

素因数の和:5557

約数の個数: 24

約数和(自身を含む): 42398720

約数和(自身を除く): 21354676

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 5407, 10814, 21628, 37849, 75698, 151396, 751573, 1503146, 3006292, 5261011, 10522022, 21044044]

約数ペア:

[(1, 21044044), (2, 10522022), (4, 5261011), (7, 3006292), (14, 1503146), (28, 751573), (139, 151396), (278, 75698), (556, 37849), (973, 21628), (1946, 10814), (3892, 5407)]