81805581

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3739}}^1$

素因数の和:3786

約数の個数: 48

約数和(自身を含む): 147026880

約数和(自身を除く): 65221299

約数列:

[1, 3, 9, 11, 13, 17, 33, 39, 51, 99, 117, 143, 153, 187, 221, 429, 561, 663, 1287, 1683, 1989, 2431, 3739, 7293, 11217, 21879, 33651, 41129, 48607, 63563, 123387, 145821, 190689, 370161, 437463, 534677, 572067, 699193, 826319, 1604031, 2097579, 2478957, 4812093, 6292737, 7436871, 9089509, 27268527, 81805581]

約数ペア:

[(1, 81805581), (3, 27268527), (9, 9089509), (11, 7436871), (13, 6292737), (17, 4812093), (33, 2478957), (39, 2097579), (51, 1604031), (99, 826319), (117, 699193), (143, 572067), (153, 534677), (187, 437463), (221, 370161), (429, 190689), (561, 145821), (663, 123387), (1287, 63563), (1683, 48607), (1989, 41129), (2431, 33651), (3739, 21879), (7293, 11217)]