248405059

素因数分解:

$7^4\times {\mathrm{307}}^1\times {\mathrm{337}}^1$

素因数の和:672

約数の個数: 20

約数和(自身を含む): 291595304

約数和(自身を除く): 43190245

約数列:

[1, 7, 49, 307, 337, 343, 2149, 2359, 2401, 15043, 16513, 103459, 105301, 115591, 724213, 737107, 809137, 5069491, 35486437, 248405059]

約数ペア:

[(1, 248405059), (7, 35486437), (49, 5069491), (307, 809137), (337, 737107), (343, 724213), (2149, 115591), (2359, 105301), (2401, 103459), (15043, 16513)]