20808368

素因数分解:

$2^4\times 7^1\times {\mathrm{185789}}^1$

素因数の和:185804

約数の個数: 20

約数和(自身を含む): 46075920

約数和(自身を除く): 25267552

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 185789, 371578, 743156, 1300523, 1486312, 2601046, 2972624, 5202092, 10404184, 20808368]

約数ペア:

[(1, 20808368), (2, 10404184), (4, 5202092), (7, 2972624), (8, 2601046), (14, 1486312), (16, 1300523), (28, 743156), (56, 371578), (112, 185789)]