20497393

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{7489}}^1$

素因数の和:7536

約数の個数: 16

約数和(自身を含む): 25885440

約数和(自身を除く): 5388047

約数列:

[1, 7, 17, 23, 119, 161, 391, 2737, 7489, 52423, 127313, 172247, 891191, 1205729, 2928199, 20497393]

約数ペア:

[(1, 20497393), (7, 2928199), (17, 1205729), (23, 891191), (119, 172247), (161, 127313), (391, 52423), (2737, 7489)]