156981

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:152

約数の個数: 16

約数和(自身を含む): 235008

約数和(自身を除く): 78027

約数列:

[1, 3, 11, 33, 67, 71, 201, 213, 737, 781, 2211, 2343, 4757, 14271, 52327, 156981]

約数ペア:

[(1, 156981), (3, 52327), (11, 14271), (33, 4757), (67, 2343), (71, 2211), (201, 781), (213, 737)]