21256983

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{5237}}^1$

素因数の和:5295

約数の個数: 24

約数和(自身を含む): 34319376

約数和(自身を除く): 13062393

約数列:

[1, 3, 9, 11, 33, 41, 99, 123, 369, 451, 1353, 4059, 5237, 15711, 47133, 57607, 172821, 214717, 518463, 644151, 1932453, 2361887, 7085661, 21256983]

約数ペア:

[(1, 21256983), (3, 7085661), (9, 2361887), (11, 1932453), (33, 644151), (41, 518463), (99, 214717), (123, 172821), (369, 57607), (451, 47133), (1353, 15711), (4059, 5237)]