1991231178

素因数分解:

$2^1\times 3^1\times {\mathrm{131}}^1\times {\mathrm{2533373}}^1$

素因数の和:2533509

約数の個数: 16

約数和(自身を含む): 4012864416

約数和(自身を除く): 2021633238

約数列:

[1, 2, 3, 6, 131, 262, 393, 786, 2533373, 5066746, 7600119, 15200238, 331871863, 663743726, 995615589, 1991231178]

約数ペア:

[(1, 1991231178), (2, 995615589), (3, 663743726), (6, 331871863), (131, 15200238), (262, 7600119), (393, 5066746), (786, 2533373)]