20786017

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{313}}^1$

素因数の和:552

約数の個数: 16

約数和(自身を含む): 24416640

約数和(自身を除く): 3630623

約数列:

[1, 7, 53, 179, 313, 371, 1253, 2191, 9487, 16589, 56027, 66409, 116123, 392189, 2969431, 20786017]

約数ペア:

[(1, 20786017), (7, 2969431), (53, 392189), (179, 116123), (313, 66409), (371, 56027), (1253, 16589), (2191, 9487)]