21979016

素因数分解:

$2^3\times {\mathrm{1237}}^1\times {\mathrm{2221}}^1$

素因数の和:3464

約数の個数: 16

約数和(自身を含む): 41262540

約数和(自身を除く): 19283524

約数列:

[1, 2, 4, 8, 1237, 2221, 2474, 4442, 4948, 8884, 9896, 17768, 2747377, 5494754, 10989508, 21979016]

約数ペア:

[(1, 21979016), (2, 10989508), (4, 5494754), (8, 2747377), (1237, 17768), (2221, 9896), (2474, 8884), (4442, 4948)]