19770278

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{4259}}^1$

素因数の和:4483

約数の個数: 16

約数和(自身を含む): 32512320

約数和(自身を除く): 12742042

約数列:

[1, 2, 11, 22, 211, 422, 2321, 4259, 4642, 8518, 46849, 93698, 898649, 1797298, 9885139, 19770278]

約数ペア:

[(1, 19770278), (2, 9885139), (11, 1797298), (22, 898649), (211, 93698), (422, 46849), (2321, 8518), (4259, 4642)]