123661153

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{20857}}^1$

素因数の和:20893

約数の個数: 18

約数和(自身を含む): 158124498

約数和(自身を除く): 34463345

約数列:

[1, 7, 11, 49, 77, 121, 539, 847, 5929, 20857, 145999, 229427, 1021993, 1605989, 2523697, 11241923, 17665879, 123661153]

約数ペア:

[(1, 123661153), (7, 17665879), (11, 11241923), (49, 2523697), (77, 1605989), (121, 1021993), (539, 229427), (847, 145999), (5929, 20857)]