215915513

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 255467520

約数和(自身を除く): 39552007

約数列:

[1, 11, 23, 43, 89, 223, 253, 473, 979, 989, 2047, 2453, 3827, 5129, 9589, 10879, 19847, 22517, 42097, 56419, 88021, 105479, 218317, 220547, 456481, 853421, 968231, 2426017, 5021291, 9387631, 19628683, 215915513]

約数ペア:

[(1, 215915513), (11, 19628683), (23, 9387631), (43, 5021291), (89, 2426017), (223, 968231), (253, 853421), (473, 456481), (979, 220547), (989, 218317), (2047, 105479), (2453, 88021), (3827, 56419), (5129, 42097), (9589, 22517), (10879, 19847)]