81146891

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2027}}^1$

素因数の和:2103

約数の個数: 24

約数和(自身を含む): 101724480

約数和(自身を除く): 20577589

約数列:

[1, 7, 19, 43, 49, 133, 301, 817, 931, 2027, 2107, 5719, 14189, 38513, 40033, 87161, 99323, 269591, 610127, 1656059, 1887137, 4270889, 11592413, 81146891]

約数ペア:

[(1, 81146891), (7, 11592413), (19, 4270889), (43, 1887137), (49, 1656059), (133, 610127), (301, 269591), (817, 99323), (931, 87161), (2027, 40033), (2107, 38513), (5719, 14189)]