20139119

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:132

約数の個数: 48

約数和(自身を含む): 28600320

約数和(自身を除く): 8461201

約数列:

[1, 7, 11, 13, 31, 59, 77, 91, 121, 143, 217, 341, 403, 413, 649, 767, 847, 1001, 1573, 1829, 2387, 2821, 3751, 4433, 4543, 5369, 7139, 8437, 11011, 12803, 20119, 23777, 26257, 31031, 48763, 49973, 59059, 92807, 140833, 166439, 221309, 261547, 341341, 649649, 1549163, 1830829, 2877017, 20139119]

約数ペア:

[(1, 20139119), (7, 2877017), (11, 1830829), (13, 1549163), (31, 649649), (59, 341341), (77, 261547), (91, 221309), (121, 166439), (143, 140833), (217, 92807), (341, 59059), (403, 49973), (413, 48763), (649, 31031), (767, 26257), (847, 23777), (1001, 20119), (1573, 12803), (1829, 11011), (2387, 8437), (2821, 7139), (3751, 5369), (4433, 4543)]