97781999

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{827}}^1$

素因数の和:987

約数の個数: 24

約数和(自身を含む): 120821760

約数和(自身を除く): 23039761

約数列:

[1, 7, 19, 49, 127, 133, 827, 889, 931, 2413, 5789, 6223, 15713, 16891, 40523, 105029, 109991, 118237, 735203, 769937, 1995551, 5146421, 13968857, 97781999]

約数ペア:

[(1, 97781999), (7, 13968857), (19, 5146421), (49, 1995551), (127, 769937), (133, 735203), (827, 118237), (889, 109991), (931, 105029), (2413, 40523), (5789, 16891), (6223, 15713)]