81565057

素因数分解:

$7^3\times {\mathrm{37}}^1\times {\mathrm{6427}}^1$

素因数の和:6485

約数の個数: 16

約数和(自身を含む): 97705600

約数和(自身を除く): 16140543

約数列:

[1, 7, 37, 49, 259, 343, 1813, 6427, 12691, 44989, 237799, 314923, 1664593, 2204461, 11652151, 81565057]

約数ペア:

[(1, 81565057), (7, 11652151), (37, 2204461), (49, 1664593), (259, 314923), (343, 237799), (1813, 44989), (6427, 12691)]