2017520055

素因数分解:

$3^4\times 5^1\times {\mathrm{4981531}}^1$

素因数の和:4981548

約数の個数: 20

約数和(自身を含む): 3616592232

約数和(自身を除く): 1599072177

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 4981531, 14944593, 24907655, 44833779, 74722965, 134501337, 224168895, 403504011, 672506685, 2017520055]

約数ペア:

[(1, 2017520055), (3, 672506685), (5, 403504011), (9, 224168895), (15, 134501337), (27, 74722965), (45, 44833779), (81, 24907655), (135, 14944593), (405, 4981531)]