19988177

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{733}}^1$

素因数の和:848

約数の個数: 16

約数和(自身を含む): 22759872

約数和(自身を除く): 2771695

約数列:

[1, 11, 37, 67, 407, 733, 737, 2479, 8063, 27121, 27269, 49111, 298331, 540221, 1817107, 19988177]

約数ペア:

[(1, 19988177), (11, 1817107), (37, 540221), (67, 298331), (407, 49111), (733, 27269), (737, 27121), (2479, 8063)]