28120037

素因数分解:

${\mathrm{11}}^3\times {\mathrm{37}}^1\times {\mathrm{571}}^1$

素因数の和:641

約数の個数: 16

約数和(自身を含む): 31821504

約数和(自身を除く): 3701467

約数列:

[1, 11, 37, 121, 407, 571, 1331, 4477, 6281, 21127, 49247, 69091, 232397, 760001, 2556367, 28120037]

約数ペア:

[(1, 28120037), (11, 2556367), (37, 760001), (121, 232397), (407, 69091), (571, 49247), (1331, 21127), (4477, 6281)]