19836872

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{1303}}^1$

素因数の和:1493

約数の個数: 32

約数和(自身を含む): 40841280

約数和(自身を除く): 21004408

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 173, 346, 692, 1303, 1384, 1903, 2606, 3806, 5212, 7612, 10424, 14333, 15224, 28666, 57332, 114664, 225419, 450838, 901676, 1803352, 2479609, 4959218, 9918436, 19836872]

約数ペア:

[(1, 19836872), (2, 9918436), (4, 4959218), (8, 2479609), (11, 1803352), (22, 901676), (44, 450838), (88, 225419), (173, 114664), (346, 57332), (692, 28666), (1303, 15224), (1384, 14333), (1903, 10424), (2606, 7612), (3806, 5212)]