21304144

素因数分解:

$2^4\times {\mathrm{199}}^1\times {\mathrm{6691}}^1$

素因数の和:6898

約数の個数: 20

約数和(自身を含む): 41490400

約数和(自身を除く): 20186256

約数列:

[1, 2, 4, 8, 16, 199, 398, 796, 1592, 3184, 6691, 13382, 26764, 53528, 107056, 1331509, 2663018, 5326036, 10652072, 21304144]

約数ペア:

[(1, 21304144), (2, 10652072), (4, 5326036), (8, 2663018), (16, 1331509), (199, 107056), (398, 53528), (796, 26764), (1592, 13382), (3184, 6691)]