21063561

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{17957}}^1$

素因数の和:18000

約数の個数: 16

約数和(自身を含む): 31031424

約数和(自身を除く): 9967863

約数列:

[1, 3, 17, 23, 51, 69, 391, 1173, 17957, 53871, 305269, 413011, 915807, 1239033, 7021187, 21063561]

約数ペア:

[(1, 21063561), (3, 7021187), (17, 1239033), (23, 915807), (51, 413011), (69, 305269), (391, 53871), (1173, 17957)]