21531433

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{929}}^1$

素因数の和:997

約数の個数: 24

約数和(自身を含む): 27989280

約数和(自身を除く): 6457847

約数列:

[1, 7, 11, 43, 49, 77, 301, 473, 539, 929, 2107, 3311, 6503, 10219, 23177, 39947, 45521, 71533, 279629, 439417, 500731, 1957403, 3075919, 21531433]

約数ペア:

[(1, 21531433), (7, 3075919), (11, 1957403), (43, 500731), (49, 439417), (77, 279629), (301, 71533), (473, 45521), (539, 39947), (929, 23177), (2107, 10219), (3311, 6503)]