56117691

素因数分解:

$3^6\times 7^2\times {\mathrm{1571}}^1$

素因数の和:1603

約数の個数: 42

約数和(自身を含む): 97937172

約数和(自身を除く): 41819481

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 567, 729, 1323, 1571, 1701, 3969, 4713, 5103, 10997, 11907, 14139, 32991, 35721, 42417, 76979, 98973, 127251, 230937, 296919, 381753, 692811, 890757, 1145259, 2078433, 2672271, 6235299, 8016813, 18705897, 56117691]

約数ペア:

[(1, 56117691), (3, 18705897), (7, 8016813), (9, 6235299), (21, 2672271), (27, 2078433), (49, 1145259), (63, 890757), (81, 692811), (147, 381753), (189, 296919), (243, 230937), (441, 127251), (567, 98973), (729, 76979), (1323, 42417), (1571, 35721), (1701, 32991), (3969, 14139), (4713, 11907), (5103, 10997)]