18981910

素因数分解:

$2^1\times 5^1\times {\mathrm{1171}}^1\times {\mathrm{1621}}^1$

素因数の和:2799

約数の個数: 16

約数和(自身を含む): 34217712

約数和(自身を除く): 15235802

約数列:

[1, 2, 5, 10, 1171, 1621, 2342, 3242, 5855, 8105, 11710, 16210, 1898191, 3796382, 9490955, 18981910]

約数ペア:

[(1, 18981910), (2, 9490955), (5, 3796382), (10, 1898191), (1171, 16210), (1621, 11710), (2342, 8105), (3242, 5855)]