2181969515

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{3559}}^1$

素因数の和:3803

約数の個数: 32

約数和(自身を含む): 2915896320

約数和(自身を除く): 733926805

約数列:

[1, 5, 11, 55, 71, 157, 355, 781, 785, 1727, 3559, 3905, 8635, 11147, 17795, 39149, 55735, 122617, 195745, 252689, 558763, 613085, 1263445, 2779579, 2793815, 6146393, 13897895, 30731965, 39672173, 198360865, 436393903, 2181969515]

約数ペア:

[(1, 2181969515), (5, 436393903), (11, 198360865), (55, 39672173), (71, 30731965), (157, 13897895), (355, 6146393), (781, 2793815), (785, 2779579), (1727, 1263445), (3559, 613085), (3905, 558763), (8635, 252689), (11147, 195745), (17795, 122617), (39149, 55735)]