21080804930

素因数分解:

$2^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1009}}^1\times {\mathrm{16451}}^1$

素因数の和:17594

約数の個数: 32

約数和(自身を含む): 38284462080

約数和(自身を除く): 17203657150

約数列:

[1, 2, 5, 10, 127, 254, 635, 1009, 1270, 2018, 5045, 10090, 16451, 32902, 82255, 128143, 164510, 256286, 640715, 1281430, 2089277, 4178554, 10446385, 16599059, 20892770, 33198118, 82995295, 165990590, 2108080493, 4216160986, 10540402465, 21080804930]

約数ペア:

[(1, 21080804930), (2, 10540402465), (5, 4216160986), (10, 2108080493), (127, 165990590), (254, 82995295), (635, 33198118), (1009, 20892770), (1270, 16599059), (2018, 10446385), (5045, 4178554), (10090, 2089277), (16451, 1281430), (32902, 640715), (82255, 256286), (128143, 164510)]