21127856

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{6703}}^1$

素因数の和:6908

約数の個数: 20

約数和(自身を含む): 41149152

約数和(自身を除く): 20021296

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 6703, 13406, 26812, 53624, 107248, 1320491, 2640982, 5281964, 10563928, 21127856]

約数ペア:

[(1, 21127856), (2, 10563928), (4, 5281964), (8, 2640982), (16, 1320491), (197, 107248), (394, 53624), (788, 26812), (1576, 13406), (3152, 6703)]