31209651

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{233}}^1$

素因数の和:305

約数の個数: 48

約数和(自身を含む): 52284960

約数和(自身を除く): 21075309

約数列:

[1, 3, 9, 11, 27, 33, 41, 99, 121, 123, 233, 297, 363, 369, 451, 699, 1089, 1107, 1353, 2097, 2563, 3267, 4059, 4961, 6291, 7689, 9553, 12177, 14883, 23067, 28193, 28659, 44649, 69201, 84579, 85977, 105083, 133947, 253737, 257931, 315249, 761211, 945747, 1155913, 2837241, 3467739, 10403217, 31209651]

約数ペア:

[(1, 31209651), (3, 10403217), (9, 3467739), (11, 2837241), (27, 1155913), (33, 945747), (41, 761211), (99, 315249), (121, 257931), (123, 253737), (233, 133947), (297, 105083), (363, 85977), (369, 84579), (451, 69201), (699, 44649), (1089, 28659), (1107, 28193), (1353, 23067), (2097, 14883), (2563, 12177), (3267, 9553), (4059, 7689), (4961, 6291)]