21170936

素因数分解:

$2^3\times {\mathrm{389}}^1\times {\mathrm{6803}}^1$

素因数の和:7198

約数の個数: 16

約数和(自身を含む): 39803400

約数和(自身を除く): 18632464

約数列:

[1, 2, 4, 8, 389, 778, 1556, 3112, 6803, 13606, 27212, 54424, 2646367, 5292734, 10585468, 21170936]

約数ペア:

[(1, 21170936), (2, 10585468), (4, 5292734), (8, 2646367), (389, 54424), (778, 27212), (1556, 13606), (3112, 6803)]