20519418

素因数分解:

$2^1\times 3^1\times {\mathrm{163}}^1\times {\mathrm{20981}}^1$

素因数の和:21149

約数の個数: 16

約数和(自身を含む): 41292576

約数和(自身を除く): 20773158

約数列:

[1, 2, 3, 6, 163, 326, 489, 978, 20981, 41962, 62943, 125886, 3419903, 6839806, 10259709, 20519418]

約数ペア:

[(1, 20519418), (2, 10259709), (3, 6839806), (6, 3419903), (163, 125886), (326, 62943), (489, 41962), (978, 20981)]