28976857

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{18731}}^1$

素因数の和:18768

約数の個数: 16

約数和(自身を含む): 37763712

約数和(自身を除く): 8786855

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 18731, 131117, 243503, 318427, 1704521, 2228989, 4139551, 28976857]

約数ペア:

[(1, 28976857), (7, 4139551), (13, 2228989), (17, 1704521), (91, 318427), (119, 243503), (221, 131117), (1547, 18731)]