21000886210

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{72416849}}^1$

素因数の和:72416885

約数の個数: 16

約数和(自身を含む): 39105099000

約数和(自身を除く): 18104212790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 72416849, 144833698, 362084245, 724168490, 2100088621, 4200177242, 10500443105, 21000886210]

約数ペア:

[(1, 21000886210), (2, 10500443105), (5, 4200177242), (10, 2100088621), (29, 724168490), (58, 362084245), (145, 144833698), (290, 72416849)]