18816847

素因数分解:

$7^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:462

約数の個数: 16

約数和(自身を含む): 22014720

約数和(自身を除く): 3197873

約数列:

[1, 7, 83, 139, 233, 581, 973, 1631, 11537, 19339, 32387, 80759, 135373, 226709, 2688121, 18816847]

約数ペア:

[(1, 18816847), (7, 2688121), (83, 226709), (139, 135373), (233, 80759), (581, 32387), (973, 19339), (1631, 11537)]