19770443

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{2647}}^1$

素因数の和:2762

約数の個数: 16

約数和(自身を含む): 24912384

約数和(自身を除く): 5141941

約数列:

[1, 7, 11, 77, 97, 679, 1067, 2647, 7469, 18529, 29117, 203819, 256759, 1797313, 2824349, 19770443]

約数ペア:

[(1, 19770443), (7, 2824349), (11, 1797313), (77, 256759), (97, 203819), (679, 29117), (1067, 18529), (2647, 7469)]