251283357

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{16649}}^1$

素因数の和:16714

約数の個数: 32

約数和(自身を含む): 410256000

約数和(自身を除く): 158972643

約数列:

[1, 3, 9, 13, 27, 39, 43, 117, 129, 351, 387, 559, 1161, 1677, 5031, 15093, 16649, 49947, 149841, 216437, 449523, 649311, 715907, 1947933, 2147721, 5843799, 6443163, 9306791, 19329489, 27920373, 83761119, 251283357]

約数ペア:

[(1, 251283357), (3, 83761119), (9, 27920373), (13, 19329489), (27, 9306791), (39, 6443163), (43, 5843799), (117, 2147721), (129, 1947933), (351, 715907), (387, 649311), (559, 449523), (1161, 216437), (1677, 149841), (5031, 49947), (15093, 16649)]