20815531

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{709}}^1$

素因数の和:894

約数の個数: 16

約数和(自身を含む): 24230880

約数和(自身を除く): 3415349

約数列:

[1, 11, 17, 157, 187, 709, 1727, 2669, 7799, 12053, 29359, 111313, 132583, 1224443, 1892321, 20815531]

約数ペア:

[(1, 20815531), (11, 1892321), (17, 1224443), (157, 132583), (187, 111313), (709, 29359), (1727, 12053), (2669, 7799)]