81721966

素因数分解:

$2^1\times {\mathrm{83}}^1\times {\mathrm{317}}^1\times {\mathrm{1553}}^1$

素因数の和:1955

約数の個数: 16

約数和(自身を含む): 124531344

約数和(自身を除く): 42809378

約数列:

[1, 2, 83, 166, 317, 634, 1553, 3106, 26311, 52622, 128899, 257798, 492301, 984602, 40860983, 81721966]

約数ペア:

[(1, 81721966), (2, 40860983), (83, 984602), (166, 492301), (317, 257798), (634, 128899), (1553, 52622), (3106, 26311)]