20723451

素因数分解:

$3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{4129}}^1$

素因数の和:4378

約数の個数: 16

約数和(自身を含む): 31718400

約数和(自身を除く): 10994949

約数列:

[1, 3, 7, 21, 239, 717, 1673, 4129, 5019, 12387, 28903, 86709, 986831, 2960493, 6907817, 20723451]

約数ペア:

[(1, 20723451), (3, 6907817), (7, 2960493), (21, 986831), (239, 86709), (717, 28903), (1673, 12387), (4129, 5019)]