21340310

素因数分解:

$2^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{8929}}^1$

素因数の和:9175

約数の個数: 16

約数和(自身を含む): 38577600

約数和(自身を除く): 17237290

約数列:

[1, 2, 5, 10, 239, 478, 1195, 2390, 8929, 17858, 44645, 89290, 2134031, 4268062, 10670155, 21340310]

約数ペア:

[(1, 21340310), (2, 10670155), (5, 4268062), (10, 2134031), (239, 89290), (478, 44645), (1195, 17858), (2390, 8929)]