20798407

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1\times {\mathrm{443}}^1$

素因数の和:822

約数の個数: 16

約数和(自身を含む): 25148160

約数和(自身を除く): 4349753

約数列:

[1, 7, 19, 133, 353, 443, 2471, 3101, 6707, 8417, 46949, 58919, 156379, 1094653, 2971201, 20798407]

約数ペア:

[(1, 20798407), (7, 2971201), (19, 1094653), (133, 156379), (353, 58919), (443, 46949), (2471, 8417), (3101, 6707)]