21608902

素因数分解:

$2^1\times 7^2\times {\mathrm{311}}^1\times {\mathrm{709}}^1$

素因数の和:1036

約数の個数: 24

約数和(自身を含む): 37879920

約数和(自身を除く): 16271018

約数列:

[1, 2, 7, 14, 49, 98, 311, 622, 709, 1418, 2177, 4354, 4963, 9926, 15239, 30478, 34741, 69482, 220499, 440998, 1543493, 3086986, 10804451, 21608902]

約数ペア:

[(1, 21608902), (2, 10804451), (7, 3086986), (14, 1543493), (49, 440998), (98, 220499), (311, 69482), (622, 34741), (709, 30478), (1418, 15239), (2177, 9926), (4354, 4963)]