20505968

素因数分解:

$2^4\times 7^1\times {\mathrm{183089}}^1$

素因数の和:183104

約数の個数: 20

約数和(自身を含む): 45406320

約数和(自身を除く): 24900352

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 183089, 366178, 732356, 1281623, 1464712, 2563246, 2929424, 5126492, 10252984, 20505968]

約数ペア:

[(1, 20505968), (2, 10252984), (4, 5126492), (7, 2929424), (8, 2563246), (14, 1464712), (16, 1281623), (28, 732356), (56, 366178), (112, 183089)]