21568779

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{3593}}^1$

素因数の和:3651

約数の個数: 24

約数和(自身を含む): 33639840

約数和(自身を除く): 12071061

約数列:

[1, 3, 9, 23, 29, 69, 87, 207, 261, 667, 2001, 3593, 6003, 10779, 32337, 82639, 104197, 247917, 312591, 743751, 937773, 2396531, 7189593, 21568779]

約数ペア:

[(1, 21568779), (3, 7189593), (9, 2396531), (23, 937773), (29, 743751), (69, 312591), (87, 247917), (207, 104197), (261, 82639), (667, 32337), (2001, 10779), (3593, 6003)]