19802222

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{6871}}^1$

素因数の和:7015

約数の個数: 16

約数和(自身を含む): 32655744

約数和(自身を除く): 12853522

約数列:

[1, 2, 11, 22, 131, 262, 1441, 2882, 6871, 13742, 75581, 151162, 900101, 1800202, 9901111, 19802222]

約数ペア:

[(1, 19802222), (2, 9901111), (11, 1800202), (22, 900101), (131, 151162), (262, 75581), (1441, 13742), (2882, 6871)]