31808907

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{349}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 53508000

約数和(自身を除く): 21699093

約数列:

[1, 3, 9, 13, 19, 39, 41, 57, 117, 123, 171, 247, 349, 369, 533, 741, 779, 1047, 1599, 2223, 2337, 3141, 4537, 4797, 6631, 7011, 10127, 13611, 14309, 19893, 30381, 40833, 42927, 59679, 86203, 91143, 128781, 186017, 258609, 271871, 558051, 775827, 815613, 1674153, 2446839, 3534323, 10602969, 31808907]

約数ペア:

[(1, 31808907), (3, 10602969), (9, 3534323), (13, 2446839), (19, 1674153), (39, 815613), (41, 775827), (57, 558051), (117, 271871), (123, 258609), (171, 186017), (247, 128781), (349, 91143), (369, 86203), (533, 59679), (741, 42927), (779, 40833), (1047, 30381), (1599, 19893), (2223, 14309), (2337, 13611), (3141, 10127), (4537, 7011), (4797, 6631)]