21071171

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2459}}^1$

素因数の和:2530

約数の個数: 16

約数和(自身を含む): 24796800

約数和(自身を除く): 3725629

約数列:

[1, 11, 19, 41, 209, 451, 779, 2459, 8569, 27049, 46721, 100819, 513931, 1109009, 1915561, 21071171]

約数ペア:

[(1, 21071171), (11, 1915561), (19, 1109009), (41, 513931), (209, 100819), (451, 46721), (779, 27049), (2459, 8569)]