18999455

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{2089}}^1$

素因数の和:2218

約数の個数: 16

約数和(自身を含む): 24377760

約数和(自身を除く): 5378305

約数列:

[1, 5, 17, 85, 107, 535, 1819, 2089, 9095, 10445, 35513, 177565, 223523, 1117615, 3799891, 18999455]

約数ペア:

[(1, 18999455), (5, 3799891), (17, 1117615), (85, 223523), (107, 177565), (535, 35513), (1819, 10445), (2089, 9095)]