20081708

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{13907}}^1$

素因数の和:13949

約数の個数: 18

約数和(自身を含む): 37092636

約数和(自身を除く): 17010928

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 13907, 27814, 55628, 264233, 528466, 1056932, 5020427, 10040854, 20081708]

約数ペア:

[(1, 20081708), (2, 10040854), (4, 5020427), (19, 1056932), (38, 528466), (76, 264233), (361, 55628), (722, 27814), (1444, 13907)]