21947849

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{1913}}^1$

素因数の和:2080

約数の個数: 16

約数和(自身を含む): 27561600

約数和(自身を除く): 5613751

約数列:

[1, 7, 11, 77, 149, 1043, 1639, 1913, 11473, 13391, 21043, 147301, 285037, 1995259, 3135407, 21947849]

約数ペア:

[(1, 21947849), (7, 3135407), (11, 1995259), (77, 285037), (149, 147301), (1043, 21043), (1639, 13391), (1913, 11473)]