21008218

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{136417}}^1$

素因数の和:136437

約数の個数: 16

約数和(自身を含む): 39288384

約数和(自身を除く): 18280166

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 136417, 272834, 954919, 1500587, 1909838, 3001174, 10504109, 21008218]

約数ペア:

[(1, 21008218), (2, 10504109), (7, 3001174), (11, 1909838), (14, 1500587), (22, 954919), (77, 272834), (154, 136417)]