2018689981

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{639433}}^1$

素因数の和:639492

約数の個数: 16

約数和(自身を含む): 2578197888

約数和(自身を除く): 559507907

約数列:

[1, 7, 11, 41, 77, 287, 451, 3157, 639433, 4476031, 7033763, 26216753, 49236341, 183517271, 288384283, 2018689981]

約数ペア:

[(1, 2018689981), (7, 288384283), (11, 183517271), (41, 49236341), (77, 26216753), (287, 7033763), (451, 4476031), (3157, 639433)]