28297785

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{761}}^1$

素因数の和:873

約数の個数: 32

約数和(自身を含む): 47256192

約数和(自身を除く): 18958407

約数列:

[1, 3, 5, 15, 37, 67, 111, 185, 201, 335, 555, 761, 1005, 2283, 2479, 3805, 7437, 11415, 12395, 28157, 37185, 50987, 84471, 140785, 152961, 254935, 422355, 764805, 1886519, 5659557, 9432595, 28297785]

約数ペア:

[(1, 28297785), (3, 9432595), (5, 5659557), (15, 1886519), (37, 764805), (67, 422355), (111, 254935), (185, 152961), (201, 140785), (335, 84471), (555, 50987), (761, 37185), (1005, 28157), (2283, 12395), (2479, 11415), (3805, 7437)]