21141055

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{197}}^1$

素因数の和:355

約数の個数: 24

約数和(自身を含む): 27827712

約数和(自身を除く): 6686657

約数列:

[1, 5, 13, 65, 127, 169, 197, 635, 845, 985, 1651, 2561, 8255, 12805, 21463, 25019, 33293, 107315, 125095, 166465, 325247, 1626235, 4228211, 21141055]

約数ペア:

[(1, 21141055), (5, 4228211), (13, 1626235), (65, 325247), (127, 166465), (169, 125095), (197, 107315), (635, 33293), (845, 25019), (985, 21463), (1651, 12805), (2561, 8255)]