20161851729

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{409}}^1\times {\mathrm{4481}}^1$

素因数の和:5105

約数の個数: 32

約数和(自身を含む): 28519862400

約数和(自身を除く): 8358010671

約数列:

[1, 3, 19, 57, 193, 409, 579, 1227, 3667, 4481, 7771, 11001, 13443, 23313, 78937, 85139, 236811, 255417, 864833, 1499803, 1832729, 2594499, 4499409, 5498187, 16431827, 34821851, 49295481, 104465553, 353716697, 1061150091, 6720617243, 20161851729]

約数ペア:

[(1, 20161851729), (3, 6720617243), (19, 1061150091), (57, 353716697), (193, 104465553), (409, 49295481), (579, 34821851), (1227, 16431827), (3667, 5498187), (4481, 4499409), (7771, 2594499), (11001, 1832729), (13443, 1499803), (23313, 864833), (78937, 255417), (85139, 236811)]