20212970

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{27689}}^1$

素因数の和:27769

約数の個数: 16

約数和(自身を含む): 36883080

約数和(自身を除く): 16670110

約数列:

[1, 2, 5, 10, 73, 146, 365, 730, 27689, 55378, 138445, 276890, 2021297, 4042594, 10106485, 20212970]

約数ペア:

[(1, 20212970), (2, 10106485), (5, 4042594), (10, 2021297), (73, 276890), (146, 138445), (365, 55378), (730, 27689)]