20451826

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{1103}}^1$

素因数の和:1305

約数の個数: 16

約数和(自身を含む): 31371264

約数和(自身を除く): 10919438

約数列:

[1, 2, 73, 127, 146, 254, 1103, 2206, 9271, 18542, 80519, 140081, 161038, 280162, 10225913, 20451826]

約数ペア:

[(1, 20451826), (2, 10225913), (73, 280162), (127, 161038), (146, 140081), (254, 80519), (1103, 18542), (2206, 9271)]