21744680

素因数分解:

$2^3\times 5^1\times {\mathrm{543617}}^1$

素因数の和:543628

約数の個数: 16

約数和(自身を含む): 48925620

約数和(自身を除く): 27180940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 543617, 1087234, 2174468, 2718085, 4348936, 5436170, 10872340, 21744680]

約数ペア:

[(1, 21744680), (2, 10872340), (4, 5436170), (5, 4348936), (8, 2718085), (10, 2174468), (20, 1087234), (40, 543617)]