51128231

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{281}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 68221440

約数和(自身を除く): 17093209

約数列:

[1, 7, 11, 17, 77, 119, 139, 187, 281, 973, 1309, 1529, 1967, 2363, 3091, 4777, 10703, 16541, 21637, 25993, 33439, 39059, 52547, 181951, 273413, 367829, 429649, 664003, 3007543, 4648021, 7304033, 51128231]

約数ペア:

[(1, 51128231), (7, 7304033), (11, 4648021), (17, 3007543), (77, 664003), (119, 429649), (139, 367829), (187, 273413), (281, 181951), (973, 52547), (1309, 39059), (1529, 33439), (1967, 25993), (2363, 21637), (3091, 16541), (4777, 10703)]