20178291

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41777}}^1$

素因数の和:41810

約数の個数: 16

約数和(自身を含む): 32085504

約数和(自身を除く): 11907213

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 41777, 125331, 292439, 877317, 960871, 2882613, 6726097, 20178291]

約数ペア:

[(1, 20178291), (3, 6726097), (7, 2882613), (21, 960871), (23, 877317), (69, 292439), (161, 125331), (483, 41777)]