64507261

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37309}}^1$

素因数の和:37348

約数の個数: 16

約数和(自身を含む): 83574400

約数和(自身を除く): 19067139

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 37309, 261163, 485017, 708871, 3395119, 4962097, 9215323, 64507261]

約数ペア:

[(1, 64507261), (7, 9215323), (13, 4962097), (19, 3395119), (91, 708871), (133, 485017), (247, 261163), (1729, 37309)]