20651768

素因数分解:

$2^3\times {\mathrm{53}}^2\times {\mathrm{919}}^1$

素因数の和:1031

約数の個数: 24

約数和(自身を含む): 39509400

約数和(自身を除く): 18857632

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 919, 1838, 2809, 3676, 5618, 7352, 11236, 22472, 48707, 97414, 194828, 389656, 2581471, 5162942, 10325884, 20651768]

約数ペア:

[(1, 20651768), (2, 10325884), (4, 5162942), (8, 2581471), (53, 389656), (106, 194828), (212, 97414), (424, 48707), (919, 22472), (1838, 11236), (2809, 7352), (3676, 5618)]