19693885

素因数分解:

$5^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1\times {\mathrm{281}}^1$

素因数の和:524

約数の個数: 16

約数和(自身を含む): 24121152

約数和(自身を除く): 4427267

約数列:

[1, 5, 107, 131, 281, 535, 655, 1405, 14017, 30067, 36811, 70085, 150335, 184055, 3938777, 19693885]

約数ペア:

[(1, 19693885), (5, 3938777), (107, 184055), (131, 150335), (281, 70085), (535, 36811), (655, 30067), (1405, 14017)]