31079781

素因数分解:

$3^4\times {\mathrm{257}}^1\times {\mathrm{1493}}^1$

素因数の和:1762

約数の個数: 20

約数和(自身を含む): 46639692

約数和(自身を除く): 15559911

約数列:

[1, 3, 9, 27, 81, 257, 771, 1493, 2313, 4479, 6939, 13437, 20817, 40311, 120933, 383701, 1151103, 3453309, 10359927, 31079781]

約数ペア:

[(1, 31079781), (3, 10359927), (9, 3453309), (27, 1151103), (81, 383701), (257, 120933), (771, 40311), (1493, 20817), (2313, 13437), (4479, 6939)]