19851291

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{709}}^1$

素因数の和:796

約数の個数: 32

約数和(自身を含む): 31694400

約数和(自身を除く): 11843109

約数列:

[1, 3, 9, 17, 27, 51, 61, 153, 183, 459, 549, 709, 1037, 1647, 2127, 3111, 6381, 9333, 12053, 19143, 27999, 36159, 43249, 108477, 129747, 325431, 389241, 735233, 1167723, 2205699, 6617097, 19851291]

約数ペア:

[(1, 19851291), (3, 6617097), (9, 2205699), (17, 1167723), (27, 735233), (51, 389241), (61, 325431), (153, 129747), (183, 108477), (459, 43249), (549, 36159), (709, 27999), (1037, 19143), (1647, 12053), (2127, 9333), (3111, 6381)]