2639641

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:240

約数の個数: 16

約数和(自身を含む): 3003264

約数和(自身を除く): 363623

約数列:

[1, 17, 23, 43, 157, 391, 731, 989, 2669, 3611, 6751, 16813, 61387, 114767, 155273, 2639641]

約数ペア:

[(1, 2639641), (17, 155273), (23, 114767), (43, 61387), (157, 16813), (391, 6751), (731, 3611), (989, 2669)]