21484210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{195311}}^1$

素因数の和:195329

約数の個数: 16

約数和(自身を含む): 42187392

約数和(自身を除く): 20703182

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 195311, 390622, 976555, 1953110, 2148421, 4296842, 10742105, 21484210]

約数ペア:

[(1, 21484210), (2, 10742105), (5, 4296842), (10, 2148421), (11, 1953110), (22, 976555), (55, 390622), (110, 195311)]