21082690

素因数分解:

$2^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{6779}}^1$

素因数の和:7097

約数の個数: 16

約数和(自身を含む): 38076480

約数和(自身を除く): 16993790

約数列:

[1, 2, 5, 10, 311, 622, 1555, 3110, 6779, 13558, 33895, 67790, 2108269, 4216538, 10541345, 21082690]

約数ペア:

[(1, 21082690), (2, 10541345), (5, 4216538), (10, 2108269), (311, 67790), (622, 33895), (1555, 13558), (3110, 6779)]