21258211

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2237}}^1$

素因数の和:2310

約数の個数: 16

約数和(自身を含む): 24814944

約数和(自身を除く): 3556733

約数列:

[1, 13, 17, 43, 221, 559, 731, 2237, 9503, 29081, 38029, 96191, 494377, 1250483, 1635247, 21258211]

約数ペア:

[(1, 21258211), (13, 1635247), (17, 1250483), (43, 494377), (221, 96191), (559, 38029), (731, 29081), (2237, 9503)]