20945485

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{1663}}^1$

素因数の和:1908

約数の個数: 16

約数和(自身を含む): 27555840

約数和(自身を除く): 6610355

約数列:

[1, 5, 11, 55, 229, 1145, 1663, 2519, 8315, 12595, 18293, 91465, 380827, 1904135, 4189097, 20945485]

約数ペア:

[(1, 20945485), (5, 4189097), (11, 1904135), (55, 380827), (229, 91465), (1145, 18293), (1663, 12595), (2519, 8315)]