21411088

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{12277}}^1$

素因数の和:12394

約数の個数: 20

約数和(自身を含む): 41867980

約数和(自身を除く): 20456892

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 12277, 24554, 49108, 98216, 196432, 1338193, 2676386, 5352772, 10705544, 21411088]

約数ペア:

[(1, 21411088), (2, 10705544), (4, 5352772), (8, 2676386), (16, 1338193), (109, 196432), (218, 98216), (436, 49108), (872, 24554), (1744, 12277)]