20543579

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1861}}^1$

素因数の和:1970

約数の個数: 16

約数和(自身を含む): 25025280

約数和(自身を除く): 4481701

約数列:

[1, 7, 19, 83, 133, 581, 1577, 1861, 11039, 13027, 35359, 154463, 247513, 1081241, 2934797, 20543579]

約数ペア:

[(1, 20543579), (7, 2934797), (19, 1081241), (83, 247513), (133, 154463), (581, 35359), (1577, 13027), (1861, 11039)]