215757217

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{51383}}^1$

素因数の和:51432

約数の個数: 16

約数和(自身を含む): 258975360

約数和(自身を除く): 43218143

約数列:

[1, 13, 17, 19, 221, 247, 323, 4199, 51383, 667979, 873511, 976277, 11355643, 12691601, 16596709, 215757217]

約数ペア:

[(1, 215757217), (13, 16596709), (17, 12691601), (19, 11355643), (221, 976277), (247, 873511), (323, 667979), (4199, 51383)]