28563213

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4211}}^1$

素因数の和:4257

約数の個数: 32

約数和(自身を含む): 48522240

約数和(自身を除く): 19959027

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 119, 133, 323, 357, 399, 969, 2261, 4211, 6783, 12633, 29477, 71587, 80009, 88431, 214761, 240027, 501109, 560063, 1360153, 1503327, 1680189, 4080459, 9521071, 28563213]

約数ペア:

[(1, 28563213), (3, 9521071), (7, 4080459), (17, 1680189), (19, 1503327), (21, 1360153), (51, 560063), (57, 501109), (119, 240027), (133, 214761), (323, 88431), (357, 80009), (399, 71587), (969, 29477), (2261, 12633), (4211, 6783)]