28086531

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:307

約数の個数: 32

約数和(自身を含む): 42197760

約数和(自身を除く): 14111229

約数列:

[1, 3, 11, 33, 73, 89, 131, 219, 267, 393, 803, 979, 1441, 2409, 2937, 4323, 6497, 9563, 11659, 19491, 28689, 34977, 71467, 105193, 128249, 214401, 315579, 384747, 851107, 2553321, 9362177, 28086531]

約数ペア:

[(1, 28086531), (3, 9362177), (11, 2553321), (33, 851107), (73, 384747), (89, 315579), (131, 214401), (219, 128249), (267, 105193), (393, 71467), (803, 34977), (979, 28689), (1441, 19491), (2409, 11659), (2937, 9563), (4323, 6497)]