21038035984

素因数分解:

$2^4\times 7^1\times {\mathrm{187839607}}^1$

素因数の和:187839622

約数の個数: 20

約数和(自身を含む): 46584222784

約数和(自身を除く): 25546186800

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 187839607, 375679214, 751358428, 1314877249, 1502716856, 2629754498, 3005433712, 5259508996, 10519017992, 21038035984]

約数ペア:

[(1, 21038035984), (2, 10519017992), (4, 5259508996), (7, 3005433712), (8, 2629754498), (14, 1502716856), (16, 1314877249), (28, 751358428), (56, 375679214), (112, 187839607)]