20906669

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{823}}^1$

素因数の和:1040

約数の個数: 16

約数和(自身を含む): 25313280

約数和(自身を除く): 4406611

約数列:

[1, 7, 19, 133, 191, 823, 1337, 3629, 5761, 15637, 25403, 109459, 157193, 1100351, 2986667, 20906669]

約数ペア:

[(1, 20906669), (7, 2986667), (19, 1100351), (133, 157193), (191, 109459), (823, 25403), (1337, 15637), (3629, 5761)]