209838416

素因数分解:

$2^4\times {\mathrm{661}}^1\times {\mathrm{19841}}^1$

素因数の和:20510

約数の個数: 20

約数和(自身を含む): 407197524

約数和(自身を除く): 197359108

約数列:

[1, 2, 4, 8, 16, 661, 1322, 2644, 5288, 10576, 19841, 39682, 79364, 158728, 317456, 13114901, 26229802, 52459604, 104919208, 209838416]

約数ペア:

[(1, 209838416), (2, 104919208), (4, 52459604), (8, 26229802), (16, 13114901), (661, 317456), (1322, 158728), (2644, 79364), (5288, 39682), (10576, 19841)]