9905819

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1249}}^1$

素因数の和:1370

約数の個数: 16

約数和(自身を含む): 12480000

約数和(自身を除く): 2574181

約数列:

[1, 7, 11, 77, 103, 721, 1133, 1249, 7931, 8743, 13739, 96173, 128647, 900529, 1415117, 9905819]

約数ペア:

[(1, 9905819), (7, 1415117), (11, 900529), (77, 128647), (103, 96173), (721, 13739), (1133, 8743), (1249, 7931)]