21528321

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{967}}^1$

素因数の和:1192

約数の個数: 16

約数和(自身を含む): 29597568

約数和(自身を除く): 8069247

約数列:

[1, 3, 41, 123, 181, 543, 967, 2901, 7421, 22263, 39647, 118941, 175027, 525081, 7176107, 21528321]

約数ペア:

[(1, 21528321), (3, 7176107), (41, 525081), (123, 175027), (181, 118941), (543, 39647), (967, 22263), (2901, 7421)]