81240357

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 120960000

約数和(自身を除く): 39719643

約数列:

[1, 3, 11, 33, 89, 139, 199, 267, 417, 597, 979, 1529, 2189, 2937, 4587, 6567, 12371, 17711, 27661, 37113, 53133, 82983, 136081, 194821, 304271, 408243, 584463, 912813, 2461829, 7385487, 27080119, 81240357]

約数ペア:

[(1, 81240357), (3, 27080119), (11, 7385487), (33, 2461829), (89, 912813), (139, 584463), (199, 408243), (267, 304271), (417, 194821), (597, 136081), (979, 82983), (1529, 53133), (2189, 37113), (2937, 27661), (4587, 17711), (6567, 12371)]