21041080

素因数分解:

$2^3\times 5^1\times {\mathrm{526027}}^1$

素因数の和:526038

約数の個数: 16

約数和(自身を含む): 47342520

約数和(自身を除く): 26301440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 526027, 1052054, 2104108, 2630135, 4208216, 5260270, 10520540, 21041080]

約数ペア:

[(1, 21041080), (2, 10520540), (4, 5260270), (5, 4208216), (8, 2630135), (10, 2104108), (20, 1052054), (40, 526027)]