1877239

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{421}}^1$

素因数の和:455

約数の個数: 16

約数和(自身を含む): 2363200

約数和(自身を除く): 485961

約数列:

[1, 7, 13, 49, 91, 343, 421, 637, 2947, 4459, 5473, 20629, 38311, 144403, 268177, 1877239]

約数ペア:

[(1, 1877239), (7, 268177), (13, 144403), (49, 38311), (91, 20629), (343, 5473), (421, 4459), (637, 2947)]