388701981

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{971}}^1\times {\mathrm{2341}}^1$

素因数の和:3337

約数の個数: 24

約数和(自身を含む): 591870240

約数和(自身を除く): 203168259

約数列:

[1, 3, 9, 19, 57, 171, 971, 2341, 2913, 7023, 8739, 18449, 21069, 44479, 55347, 133437, 166041, 400311, 2273111, 6819333, 20457999, 43189109, 129567327, 388701981]

約数ペア:

[(1, 388701981), (3, 129567327), (9, 43189109), (19, 20457999), (57, 6819333), (171, 2273111), (971, 400311), (2341, 166041), (2913, 133437), (7023, 55347), (8739, 44479), (18449, 21069)]