20708290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{108991}}^1$

素因数の和:109017

約数の個数: 16

約数和(自身を含む): 39237120

約数和(自身を除く): 18528830

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 108991, 217982, 544955, 1089910, 2070829, 4141658, 10354145, 20708290]

約数ペア:

[(1, 20708290), (2, 10354145), (5, 4141658), (10, 2070829), (19, 1089910), (38, 544955), (95, 217982), (190, 108991)]