20353977981

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{3217003}}^1$

素因数の和:3217065

約数の個数: 24

約数和(自身を含む): 31783999520

約数和(自身を除く): 11430021539

約数列:

[1, 3, 9, 19, 37, 57, 111, 171, 333, 703, 2109, 6327, 3217003, 9651009, 28953027, 61123057, 119029111, 183369171, 357087333, 550107513, 1071261999, 2261553109, 6784659327, 20353977981]

約数ペア:

[(1, 20353977981), (3, 6784659327), (9, 2261553109), (19, 1071261999), (37, 550107513), (57, 357087333), (111, 183369171), (171, 119029111), (333, 61123057), (703, 28953027), (2109, 9651009), (6327, 3217003)]