81285841

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{547}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 106057728

約数和(自身を除く): 24771887

約数列:

[1, 7, 13, 23, 71, 91, 161, 299, 497, 547, 923, 1633, 2093, 3829, 6461, 7111, 11431, 12581, 21229, 38837, 49777, 88067, 148603, 163553, 271859, 504881, 893251, 1144871, 3534167, 6252757, 11612263, 81285841]

約数ペア:

[(1, 81285841), (7, 11612263), (13, 6252757), (23, 3534167), (71, 1144871), (91, 893251), (161, 504881), (299, 271859), (497, 163553), (547, 148603), (923, 88067), (1633, 49777), (2093, 38837), (3829, 21229), (6461, 12581), (7111, 11431)]