20397619

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{2179}}^1$

素因数の和:2250

約数の個数: 16

約数和(自身を含む): 23857920

約数和(自身を除く): 3460301

約数列:

[1, 11, 23, 37, 253, 407, 851, 2179, 9361, 23969, 50117, 80623, 551287, 886853, 1854329, 20397619]

約数ペア:

[(1, 20397619), (11, 1854329), (23, 886853), (37, 551287), (253, 80623), (407, 50117), (851, 23969), (2179, 9361)]