20521424

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16657}}^1$

素因数の和:16683

約数の個数: 40

約数和(自身を含む): 49574208

約数和(自身を除く): 29052784

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 16657, 33314, 66628, 116599, 133256, 183227, 233198, 266512, 366454, 466396, 732908, 932792, 1282589, 1465816, 1865584, 2565178, 2931632, 5130356, 10260712, 20521424]

約数ペア:

[(1, 20521424), (2, 10260712), (4, 5130356), (7, 2931632), (8, 2565178), (11, 1865584), (14, 1465816), (16, 1282589), (22, 932792), (28, 732908), (44, 466396), (56, 366454), (77, 266512), (88, 233198), (112, 183227), (154, 133256), (176, 116599), (308, 66628), (616, 33314), (1232, 16657)]