21660177

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2287}}^1$

素因数の和:2349

約数の個数: 32

約数和(自身を含む): 36900864

約数和(自身を除く): 15240687

約数列:

[1, 3, 7, 11, 21, 33, 41, 77, 123, 231, 287, 451, 861, 1353, 2287, 3157, 6861, 9471, 16009, 25157, 48027, 75471, 93767, 176099, 281301, 528297, 656369, 1031437, 1969107, 3094311, 7220059, 21660177]

約数ペア:

[(1, 21660177), (3, 7220059), (7, 3094311), (11, 1969107), (21, 1031437), (33, 656369), (41, 528297), (77, 281301), (123, 176099), (231, 93767), (287, 75471), (451, 48027), (861, 25157), (1353, 16009), (2287, 9471), (3157, 6861)]