27821985

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2381}}^1$

素因数の和:2449

約数の個数: 32

約数和(自身を含む): 48021120

約数和(自身を除く): 20199135

約数列:

[1, 3, 5, 15, 19, 41, 57, 95, 123, 205, 285, 615, 779, 2337, 2381, 3895, 7143, 11685, 11905, 35715, 45239, 97621, 135717, 226195, 292863, 488105, 678585, 1464315, 1854799, 5564397, 9273995, 27821985]

約数ペア:

[(1, 27821985), (3, 9273995), (5, 5564397), (15, 1854799), (19, 1464315), (41, 678585), (57, 488105), (95, 292863), (123, 226195), (205, 135717), (285, 97621), (615, 45239), (779, 35715), (2337, 11905), (2381, 11685), (3895, 7143)]