31487157

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{823}}^1$

素因数の和:954

約数の個数: 32

約数和(自身を含む): 50758400

約数和(自身を除く): 19271243

約数列:

[1, 3, 9, 13, 27, 39, 109, 117, 327, 351, 823, 981, 1417, 2469, 2943, 4251, 7407, 10699, 12753, 22221, 32097, 38259, 89707, 96291, 269121, 288873, 807363, 1166191, 2422089, 3498573, 10495719, 31487157]

約数ペア:

[(1, 31487157), (3, 10495719), (9, 3498573), (13, 2422089), (27, 1166191), (39, 807363), (109, 288873), (117, 269121), (327, 96291), (351, 89707), (823, 38259), (981, 32097), (1417, 22221), (2469, 12753), (2943, 10699), (4251, 7407)]