20239989

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{12517}}^1$

素因数の和:12545

約数の個数: 24

約数和(自身を含む): 34249248

約数和(自身を除く): 14009259

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 12517, 37551, 87619, 137687, 262857, 413061, 613333, 963809, 1839999, 2891427, 6746663, 20239989]

約数ペア:

[(1, 20239989), (3, 6746663), (7, 2891427), (11, 1839999), (21, 963809), (33, 613333), (49, 413061), (77, 262857), (147, 137687), (231, 87619), (539, 37551), (1617, 12517)]