21117173

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{6689}}^1$

素因数の和:6748

約数の個数: 16

約数和(自身を含む): 26974080

約数和(自身を除く): 5856907

約数列:

[1, 7, 11, 41, 77, 287, 451, 3157, 6689, 46823, 73579, 274249, 515053, 1919743, 3016739, 21117173]

約数ペア:

[(1, 21117173), (7, 3016739), (11, 1919743), (41, 515053), (77, 274249), (287, 73579), (451, 46823), (3157, 6689)]