81399211

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{1223}}^1$

素因数の和:1386

約数の個数: 16

約数和(自身を含む): 89303040

約数和(自身を除く): 7903829

約数列:

[1, 19, 31, 113, 589, 1223, 2147, 3503, 23237, 37913, 66557, 138199, 720347, 2625781, 4284169, 81399211]

約数ペア:

[(1, 81399211), (19, 4284169), (31, 2625781), (113, 720347), (589, 138199), (1223, 66557), (2147, 37913), (3503, 23237)]