21758770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197807}}^1$

素因数の和:197825

約数の個数: 16

約数和(自身を含む): 42726528

約数和(自身を除く): 20967758

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 197807, 395614, 989035, 1978070, 2175877, 4351754, 10879385, 21758770]

約数ペア:

[(1, 21758770), (2, 10879385), (5, 4351754), (10, 2175877), (11, 1978070), (22, 989035), (55, 395614), (110, 197807)]