81005477

素因数分解:

$7^2\times {\mathrm{827}}^1\times {\mathrm{1999}}^1$

素因数の和:2840

約数の個数: 12

約数和(自身を含む): 94392000

約数和(自身を除く): 13386523

約数列:

[1, 7, 49, 827, 1999, 5789, 13993, 40523, 97951, 1653173, 11572211, 81005477]

約数ペア:

[(1, 81005477), (7, 11572211), (49, 1653173), (827, 97951), (1999, 40523), (5789, 13993)]