21578948

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{1151}}^1$

素因数の和:1307

約数の個数: 24

約数和(自身を含む): 39029760

約数和(自身を除く): 17450812

約数列:

[1, 2, 4, 43, 86, 109, 172, 218, 436, 1151, 2302, 4604, 4687, 9374, 18748, 49493, 98986, 125459, 197972, 250918, 501836, 5394737, 10789474, 21578948]

約数ペア:

[(1, 21578948), (2, 10789474), (4, 5394737), (43, 501836), (86, 250918), (109, 197972), (172, 125459), (218, 98986), (436, 49493), (1151, 18748), (2302, 9374), (4604, 4687)]