81335188

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{42989}}^1$

素因数の和:43047

約数の個数: 24

約数和(自身を含む): 158891040

約数和(自身を除く): 77555852

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 42989, 85978, 171956, 472879, 945758, 1848527, 1891516, 3697054, 7394108, 20333797, 40667594, 81335188]

約数ペア:

[(1, 81335188), (2, 40667594), (4, 20333797), (11, 7394108), (22, 3697054), (43, 1891516), (44, 1848527), (86, 945758), (172, 472879), (473, 171956), (946, 85978), (1892, 42989)]