1331330781

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47407}}^1$

素因数の和:47481

約数の個数: 32

約数和(自身を含む): 2075332608

約数和(自身を除く): 744001827

約数列:

[1, 3, 11, 23, 33, 37, 69, 111, 253, 407, 759, 851, 1221, 2553, 9361, 28083, 47407, 142221, 521477, 1090361, 1564431, 1754059, 3271083, 5262177, 11993971, 19294649, 35981913, 40343357, 57883947, 121030071, 443776927, 1331330781]

約数ペア:

[(1, 1331330781), (3, 443776927), (11, 121030071), (23, 57883947), (33, 40343357), (37, 35981913), (69, 19294649), (111, 11993971), (253, 5262177), (407, 3271083), (759, 1754059), (851, 1564431), (1221, 1090361), (2553, 521477), (9361, 142221), (28083, 47407)]