12721335

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 23033472

約数和(自身を除く): 10312137

約数列:

[1, 3, 5, 11, 15, 33, 43, 55, 121, 129, 163, 165, 215, 363, 473, 489, 605, 645, 815, 1419, 1793, 1815, 2365, 2445, 5203, 5379, 7009, 7095, 8965, 15609, 19723, 21027, 26015, 26895, 35045, 59169, 77099, 78045, 98615, 105135, 231297, 295845, 385495, 848089, 1156485, 2544267, 4240445, 12721335]

約数ペア:

[(1, 12721335), (3, 4240445), (5, 2544267), (11, 1156485), (15, 848089), (33, 385495), (43, 295845), (55, 231297), (121, 105135), (129, 98615), (163, 78045), (165, 77099), (215, 59169), (363, 35045), (473, 26895), (489, 26015), (605, 21027), (645, 19723), (815, 15609), (1419, 8965), (1793, 7095), (1815, 7009), (2365, 5379), (2445, 5203)]