208040391

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{12979}}^1$

素因数の和:13135

約数の個数: 24

約数和(自身を含む): 326005680

約数和(自身を除く): 117965289

約数列:

[1, 3, 9, 13, 39, 117, 137, 411, 1233, 1781, 5343, 12979, 16029, 38937, 116811, 168727, 506181, 1518543, 1778123, 5334369, 16003107, 23115599, 69346797, 208040391]

約数ペア:

[(1, 208040391), (3, 69346797), (9, 23115599), (13, 16003107), (39, 5334369), (117, 1778123), (137, 1518543), (411, 506181), (1233, 168727), (1781, 116811), (5343, 38937), (12979, 16029)]