20866263

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{4549}}^1$

素因数の和:4702

約数の個数: 16

約数和(自身を含む): 30576000

約数和(自身を除く): 9709737

約数列:

[1, 3, 11, 33, 139, 417, 1529, 4549, 4587, 13647, 50039, 150117, 632311, 1896933, 6955421, 20866263]

約数ペア:

[(1, 20866263), (3, 6955421), (11, 1896933), (33, 632311), (139, 150117), (417, 50039), (1529, 13647), (4549, 4587)]