20786171

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{373}}^1\times {\mathrm{419}}^1$

素因数の和:818

約数の個数: 16

約数和(自身を含む): 25132800

約数和(自身を除く): 4346629

約数列:

[1, 7, 19, 133, 373, 419, 2611, 2933, 7087, 7961, 49609, 55727, 156287, 1094009, 2969453, 20786171]

約数ペア:

[(1, 20786171), (7, 2969453), (19, 1094009), (133, 156287), (373, 55727), (419, 49609), (2611, 7961), (2933, 7087)]