1628168521

素因数分解:

$7^4\times {\mathrm{71}}^1\times {\mathrm{9551}}^1$

素因数の和:9650

約数の個数: 20

約数和(自身を含む): 1926370944

約数和(自身を除く): 298202423

約数列:

[1, 7, 49, 71, 343, 497, 2401, 3479, 9551, 24353, 66857, 170471, 467999, 678121, 3275993, 4746847, 22931951, 33227929, 232595503, 1628168521]

約数ペア:

[(1, 1628168521), (7, 232595503), (49, 33227929), (71, 22931951), (343, 4746847), (497, 3275993), (2401, 678121), (3479, 467999), (9551, 170471), (24353, 66857)]