18985216

素因数分解:

$2^8\times {\mathrm{74161}}^1$

素因数の和:74177

約数の個数: 18

約数和(自身を含む): 37896782

約数和(自身を除く): 18911566

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 74161, 148322, 296644, 593288, 1186576, 2373152, 4746304, 9492608, 18985216]

約数ペア:

[(1, 18985216), (2, 9492608), (4, 4746304), (8, 2373152), (16, 1186576), (32, 593288), (64, 296644), (128, 148322), (256, 74161)]