13281165

素因数分解:

$3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{643}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 25316928

約数和(自身を除く): 12035763

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 243, 255, 405, 459, 643, 765, 1215, 1377, 1929, 2295, 3215, 4131, 5787, 6885, 9645, 10931, 17361, 20655, 28935, 32793, 52083, 54655, 86805, 98379, 156249, 163965, 260415, 295137, 491895, 781245, 885411, 1475685, 2656233, 4427055, 13281165]

約数ペア:

[(1, 13281165), (3, 4427055), (5, 2656233), (9, 1475685), (15, 885411), (17, 781245), (27, 491895), (45, 295137), (51, 260415), (81, 163965), (85, 156249), (135, 98379), (153, 86805), (243, 54655), (255, 52083), (405, 32793), (459, 28935), (643, 20655), (765, 17361), (1215, 10931), (1377, 9645), (1929, 6885), (2295, 5787), (3215, 4131)]