20526987

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{4919}}^1$

素因数の和:5042

約数の個数: 16

約数和(自身を含む): 29756160

約数和(自身を除く): 9229173

約数列:

[1, 3, 13, 39, 107, 321, 1391, 4173, 4919, 14757, 63947, 191841, 526333, 1578999, 6842329, 20526987]

約数ペア:

[(1, 20526987), (3, 6842329), (13, 1578999), (39, 526333), (107, 191841), (321, 63947), (1391, 14757), (4173, 4919)]