1261405839

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{149}}^1\times {\mathrm{7817}}^1$

素因数の和:8007

約数の個数: 24

約数和(自身を含む): 1787194800

約数和(自身を除く): 525788961

約数列:

[1, 3, 19, 57, 149, 361, 447, 1083, 2831, 7817, 8493, 23451, 53789, 148523, 161367, 445569, 1164733, 2821937, 3494199, 8465811, 22129927, 66389781, 420468613, 1261405839]

約数ペア:

[(1, 1261405839), (3, 420468613), (19, 66389781), (57, 22129927), (149, 8465811), (361, 3494199), (447, 2821937), (1083, 1164733), (2831, 445569), (7817, 161367), (8493, 148523), (23451, 53789)]