20824265

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{7727}}^1$

素因数の和:7757

約数の個数: 24

約数和(自身を含む): 31715712

約数和(自身を除く): 10891447

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 2695, 7727, 38635, 54089, 84997, 270445, 378623, 424985, 594979, 1893115, 2974895, 4164853, 20824265]

約数ペア:

[(1, 20824265), (5, 4164853), (7, 2974895), (11, 1893115), (35, 594979), (49, 424985), (55, 378623), (77, 270445), (245, 84997), (385, 54089), (539, 38635), (2695, 7727)]