20789902

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47903}}^1$

素因数の和:47943

約数の個数: 16

約数和(自身を含む): 36790272

約数和(自身を除く): 16000370

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 47903, 95806, 335321, 670642, 1484993, 2969986, 10394951, 20789902]

約数ペア:

[(1, 20789902), (2, 10394951), (7, 2969986), (14, 1484993), (31, 670642), (62, 335321), (217, 95806), (434, 47903)]