21082280

素因数分解:

$2^3\times 5^1\times {\mathrm{527057}}^1$

素因数の和:527068

約数の個数: 16

約数和(自身を含む): 47435220

約数和(自身を除く): 26352940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 527057, 1054114, 2108228, 2635285, 4216456, 5270570, 10541140, 21082280]

約数ペア:

[(1, 21082280), (2, 10541140), (4, 5270570), (5, 4216456), (8, 2635285), (10, 2108228), (20, 1054114), (40, 527057)]