20115403

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{17}}^1\times {\mathrm{127}}^1$

素因数の和:184

約数の個数: 32

約数和(自身を含む): 26984448

約数和(自身を除く): 6869045

約数列:

[1, 7, 11, 17, 77, 119, 121, 127, 187, 847, 889, 1309, 1331, 1397, 2057, 2159, 9317, 9779, 14399, 15113, 15367, 22627, 23749, 107569, 158389, 166243, 169037, 261239, 1183259, 1828673, 2873629, 20115403]

約数ペア:

[(1, 20115403), (7, 2873629), (11, 1828673), (17, 1183259), (77, 261239), (119, 169037), (121, 166243), (127, 158389), (187, 107569), (847, 23749), (889, 22627), (1309, 15367), (1331, 15113), (1397, 14399), (2057, 9779), (2159, 9317)]