81188107

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{367}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 116370432

約数和(自身を除く): 35182325

約数列:

[1, 7, 11, 13, 17, 77, 91, 119, 143, 169, 187, 221, 367, 1001, 1183, 1309, 1547, 1859, 2431, 2569, 2873, 4037, 4771, 6239, 13013, 17017, 20111, 28259, 31603, 33397, 43673, 52481, 62023, 68629, 81107, 221221, 367367, 434161, 480403, 567749, 682253, 892177, 1054391, 4775771, 6245239, 7380737, 11598301, 81188107]

約数ペア:

[(1, 81188107), (7, 11598301), (11, 7380737), (13, 6245239), (17, 4775771), (77, 1054391), (91, 892177), (119, 682253), (143, 567749), (169, 480403), (187, 434161), (221, 367367), (367, 221221), (1001, 81107), (1183, 68629), (1309, 62023), (1547, 52481), (1859, 43673), (2431, 33397), (2569, 31603), (2873, 28259), (4037, 20111), (4771, 17017), (6239, 13013)]