21965530

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{129209}}^1$

素因数の和:129233

約数の個数: 16

約数和(自身を含む): 41864040

約数和(自身を除く): 19898510

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 129209, 258418, 646045, 1292090, 2196553, 4393106, 10982765, 21965530]

約数ペア:

[(1, 21965530), (2, 10982765), (5, 4393106), (10, 2196553), (17, 1292090), (34, 646045), (85, 258418), (170, 129209)]