2019657328

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{9709891}}^1$

素因数の和:9709912

約数の個数: 20

約数和(自身を含む): 4214093128

約数和(自身を除く): 2194435800

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 9709891, 19419782, 38839564, 77679128, 126228583, 155358256, 252457166, 504914332, 1009828664, 2019657328]

約数ペア:

[(1, 2019657328), (2, 1009828664), (4, 504914332), (8, 252457166), (13, 155358256), (16, 126228583), (26, 77679128), (52, 38839564), (104, 19419782), (208, 9709891)]