20012745

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{337}}^1$

素因数の和:489

約数の個数: 32

約数和(自身を含む): 33291648

約数和(自身を除く): 13278903

約数列:

[1, 3, 5, 15, 37, 107, 111, 185, 321, 337, 535, 555, 1011, 1605, 1685, 3959, 5055, 11877, 12469, 19795, 36059, 37407, 59385, 62345, 108177, 180295, 187035, 540885, 1334183, 4002549, 6670915, 20012745]

約数ペア:

[(1, 20012745), (3, 6670915), (5, 4002549), (15, 1334183), (37, 540885), (107, 187035), (111, 180295), (185, 108177), (321, 62345), (337, 59385), (535, 37407), (555, 36059), (1011, 19795), (1605, 12469), (1685, 11877), (3959, 5055)]