21008048

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{18493}}^1$

素因数の和:18572

約数の個数: 20

約数和(自身を含む): 41278608

約数和(自身を除く): 20270560

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 18493, 36986, 73972, 147944, 295888, 1313003, 2626006, 5252012, 10504024, 21008048]

約数ペア:

[(1, 21008048), (2, 10504024), (4, 5252012), (8, 2626006), (16, 1313003), (71, 295888), (142, 147944), (284, 73972), (568, 36986), (1136, 18493)]