21037480

素因数分解:

$2^3\times 5^1\times {\mathrm{525937}}^1$

素因数の和:525948

約数の個数: 16

約数和(自身を含む): 47334420

約数和(自身を除く): 26296940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 525937, 1051874, 2103748, 2629685, 4207496, 5259370, 10518740, 21037480]

約数ペア:

[(1, 21037480), (2, 10518740), (4, 5259370), (5, 4207496), (8, 2629685), (10, 2103748), (20, 1051874), (40, 525937)]