20005727

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1\times {\mathrm{431}}^1$

素因数の和:806

約数の個数: 16

約数和(自身を含む): 24192000

約数和(自身を除く): 4186273

約数列:

[1, 7, 19, 133, 349, 431, 2443, 3017, 6631, 8189, 46417, 57323, 150419, 1052933, 2857961, 20005727]

約数ペア:

[(1, 20005727), (7, 2857961), (19, 1052933), (133, 150419), (349, 57323), (431, 46417), (2443, 8189), (3017, 6631)]