21640024

素因数分解:

$2^3\times 7^1\times {\mathrm{386429}}^1$

素因数の和:386442

約数の個数: 16

約数和(自身を含む): 46371600

約数和(自身を除く): 24731576

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 386429, 772858, 1545716, 2705003, 3091432, 5410006, 10820012, 21640024]

約数ペア:

[(1, 21640024), (2, 10820012), (4, 5410006), (7, 3091432), (8, 2705003), (14, 1545716), (28, 772858), (56, 386429)]