21325810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193871}}^1$

素因数の和:193889

約数の個数: 16

約数和(自身を含む): 41876352

約数和(自身を除く): 20550542

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 193871, 387742, 969355, 1938710, 2132581, 4265162, 10662905, 21325810]

約数ペア:

[(1, 21325810), (2, 10662905), (5, 4265162), (10, 2132581), (11, 1938710), (22, 969355), (55, 387742), (110, 193871)]