20731869

素因数分解:

$3^4\times {\mathrm{19}}^2\times {\mathrm{709}}^1$

素因数の和:759

約数の個数: 30

約数和(自身を含む): 32731710

約数和(自身を除く): 11999841

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 361, 513, 709, 1083, 1539, 2127, 3249, 6381, 9747, 13471, 19143, 29241, 40413, 57429, 121239, 255949, 363717, 767847, 1091151, 2303541, 6910623, 20731869]

約数ペア:

[(1, 20731869), (3, 6910623), (9, 2303541), (19, 1091151), (27, 767847), (57, 363717), (81, 255949), (171, 121239), (361, 57429), (513, 40413), (709, 29241), (1083, 19143), (1539, 13471), (2127, 9747), (3249, 6381)]