20290585

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18701}}^1$

素因数の和:18744

約数の個数: 16

約数和(自身を含む): 28726272

約数和(自身を除く): 8435687

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 18701, 93505, 130907, 579731, 654535, 2898655, 4058117, 20290585]

約数ペア:

[(1, 20290585), (5, 4058117), (7, 2898655), (31, 654535), (35, 579731), (155, 130907), (217, 93505), (1085, 18701)]