18437841

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{15881}}^1$

素因数の和:15933

約数の個数: 16

約数和(自身を含む): 27952320

約数和(自身を除く): 9514479

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 15881, 47643, 142929, 428787, 682883, 2048649, 6145947, 18437841]

約数ペア:

[(1, 18437841), (3, 6145947), (9, 2048649), (27, 682883), (43, 428787), (129, 142929), (387, 47643), (1161, 15881)]