251071359

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{547}}^1\times {\mathrm{1987}}^1$

素因数の和:2555

約数の個数: 32

約数和(自身を含む): 418338816

約数和(自身を除く): 167267457

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 547, 1641, 1987, 3829, 5961, 6017, 11487, 13909, 18051, 21857, 41727, 42119, 65571, 126357, 152999, 458997, 1086889, 3260667, 7608223, 11955779, 22824669, 35867337, 83690453, 251071359]

約数ペア:

[(1, 251071359), (3, 83690453), (7, 35867337), (11, 22824669), (21, 11955779), (33, 7608223), (77, 3260667), (231, 1086889), (547, 458997), (1641, 152999), (1987, 126357), (3829, 65571), (5961, 42119), (6017, 41727), (11487, 21857), (13909, 18051)]