20639656

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{59999}}^1$

素因数の和:60048

約数の個数: 16

約数和(自身を含む): 39600000

約数和(自身を除く): 18960344

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 59999, 119998, 239996, 479992, 2579957, 5159914, 10319828, 20639656]

約数ペア:

[(1, 20639656), (2, 10319828), (4, 5159914), (8, 2579957), (43, 479992), (86, 239996), (172, 119998), (344, 59999)]