19798745

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{1609}}^1$

素因数の和:1744

約数の個数: 16

約数和(自身を含む): 25038720

約数和(自身を除く): 5239975

約数列:

[1, 5, 23, 107, 115, 535, 1609, 2461, 8045, 12305, 37007, 172163, 185035, 860815, 3959749, 19798745]

約数ペア:

[(1, 19798745), (5, 3959749), (23, 860815), (107, 185035), (115, 172163), (535, 37007), (1609, 12305), (2461, 8045)]