20612207

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{193}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 27563520

約数和(自身を除く): 6951313

約数列:

[1, 7, 11, 19, 73, 77, 133, 193, 209, 511, 803, 1351, 1387, 1463, 2123, 3667, 5621, 9709, 14089, 14861, 15257, 25669, 40337, 98623, 106799, 154979, 267691, 282359, 1084853, 1873837, 2944601, 20612207]

約数ペア:

[(1, 20612207), (7, 2944601), (11, 1873837), (19, 1084853), (73, 282359), (77, 267691), (133, 154979), (193, 106799), (209, 98623), (511, 40337), (803, 25669), (1351, 15257), (1387, 14861), (1463, 14089), (2123, 9709), (3667, 5621)]