20158557

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{463}}^1\times {\mathrm{631}}^1$

素因数の和:1120

約数の個数: 16

約数和(自身を含む): 28151808

約数和(自身を除く): 7993251

約数列:

[1, 3, 23, 69, 463, 631, 1389, 1893, 10649, 14513, 31947, 43539, 292153, 876459, 6719519, 20158557]

約数ペア:

[(1, 20158557), (3, 6719519), (23, 876459), (69, 292153), (463, 43539), (631, 31947), (1389, 14513), (1893, 10649)]