1281721

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{419}}^1$

素因数の和:468

約数の個数: 16

約数和(自身を含む): 1612800

約数和(自身を除く): 331079

約数列:

[1, 7, 19, 23, 133, 161, 419, 437, 2933, 3059, 7961, 9637, 55727, 67459, 183103, 1281721]

約数ペア:

[(1, 1281721), (7, 183103), (19, 67459), (23, 55727), (133, 9637), (161, 7961), (419, 3059), (437, 2933)]