19571824

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{64381}}^1$

素因数の和:64408

約数の個数: 20

約数和(自身を含む): 39916840

約数和(自身を除く): 20345016

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 64381, 128762, 257524, 515048, 1030096, 1223239, 2446478, 4892956, 9785912, 19571824]

約数ペア:

[(1, 19571824), (2, 9785912), (4, 4892956), (8, 2446478), (16, 1223239), (19, 1030096), (38, 515048), (76, 257524), (152, 128762), (304, 64381)]