12621791

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2617}}^1$

素因数の和:2690

約数の個数: 16

約数和(自身を含む): 15833664

約数和(自身を除く): 3211873

約数列:

[1, 7, 13, 53, 91, 371, 689, 2617, 4823, 18319, 34021, 138701, 238147, 970907, 1803113, 12621791]

約数ペア:

[(1, 12621791), (7, 1803113), (13, 970907), (53, 238147), (91, 138701), (371, 34021), (689, 18319), (2617, 4823)]