64790817

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{12491}}^1$

素因数の和:12533

約数の個数: 32

約数和(自身を含む): 111928320

約数和(自身を除く): 47137503

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 5187, 12491, 37473, 87437, 162383, 237329, 262311, 487149, 711987, 1136681, 1661303, 3085277, 3410043, 4983909, 9255831, 21596939, 64790817]

約数ペア:

[(1, 64790817), (3, 21596939), (7, 9255831), (13, 4983909), (19, 3410043), (21, 3085277), (39, 1661303), (57, 1136681), (91, 711987), (133, 487149), (247, 262311), (273, 237329), (399, 162383), (741, 87437), (1729, 37473), (5187, 12491)]