17996671

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{193}}^1$

素因数の和:391

約数の個数: 24

約数和(自身を含む): 23089104

約数和(自身を除く): 5092433

約数列:

[1, 7, 11, 49, 77, 173, 193, 539, 1211, 1351, 1903, 2123, 8477, 9457, 13321, 14861, 33389, 93247, 104027, 233723, 367279, 1636061, 2570953, 17996671]

約数ペア:

[(1, 17996671), (7, 2570953), (11, 1636061), (49, 367279), (77, 233723), (173, 104027), (193, 93247), (539, 33389), (1211, 14861), (1351, 13321), (1903, 9457), (2123, 8477)]