217872809

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{17359}}^1$

素因数の和:17540

約数の個数: 16

約数和(自身を含む): 273315840

約数和(自身を除く): 55443031

約数列:

[1, 7, 11, 77, 163, 1141, 1793, 12551, 17359, 121513, 190949, 1336643, 2829517, 19806619, 31124687, 217872809]

約数ペア:

[(1, 217872809), (7, 31124687), (11, 19806619), (77, 2829517), (163, 1336643), (1141, 190949), (1793, 121513), (12551, 17359)]