30198771

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{43}}^1$

素因数の和:145

約数の個数: 48

約数和(自身を含む): 49526400

約数和(自身を除く): 19327629

約数列:

[1, 3, 9, 19, 27, 37, 43, 57, 111, 129, 171, 333, 387, 513, 703, 817, 999, 1161, 1369, 1591, 2109, 2451, 4107, 4773, 6327, 7353, 12321, 14319, 18981, 22059, 26011, 30229, 36963, 42957, 58867, 78033, 90687, 176601, 234099, 272061, 529803, 702297, 816183, 1118473, 1589409, 3355419, 10066257, 30198771]

約数ペア:

[(1, 30198771), (3, 10066257), (9, 3355419), (19, 1589409), (27, 1118473), (37, 816183), (43, 702297), (57, 529803), (111, 272061), (129, 234099), (171, 176601), (333, 90687), (387, 78033), (513, 58867), (703, 42957), (817, 36963), (999, 30229), (1161, 26011), (1369, 22059), (1591, 18981), (2109, 14319), (2451, 12321), (4107, 7353), (4773, 6327)]