16721881

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{4211}}^1$

素因数の和:4260

約数の個数: 12

約数和(自身を含む): 19257264

約数和(自身を除く): 2535383

約数列:

[1, 11, 19, 209, 361, 3971, 4211, 46321, 80009, 880099, 1520171, 16721881]

約数ペア:

[(1, 16721881), (11, 1520171), (19, 880099), (209, 80009), (361, 46321), (3971, 4211)]