20709278

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{2011}}^1$

素因数の和:2303

約数の個数: 16

約数和(自身を含む): 32835840

約数和(自身を除く): 12126562

約数列:

[1, 2, 19, 38, 271, 542, 2011, 4022, 5149, 10298, 38209, 76418, 544981, 1089962, 10354639, 20709278]

約数ペア:

[(1, 20709278), (2, 10354639), (19, 1089962), (38, 544981), (271, 76418), (542, 38209), (2011, 10298), (4022, 5149)]