21786610

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{16631}}^1$

素因数の和:16769

約数の個数: 16

約数和(自身を含む): 39517632

約数和(自身を除く): 17731022

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 16631, 33262, 83155, 166310, 2178661, 4357322, 10893305, 21786610]

約数ペア:

[(1, 21786610), (2, 10893305), (5, 4357322), (10, 2178661), (131, 166310), (262, 83155), (655, 33262), (1310, 16631)]