12138975

素因数分解:

$3^2\times 5^2\times {\mathrm{53951}}^1$

素因数の和:53967

約数の個数: 18

約数和(自身を含む): 21742656

約数和(自身を除く): 9603681

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 53951, 161853, 269755, 485559, 809265, 1348775, 2427795, 4046325, 12138975]

約数ペア:

[(1, 12138975), (3, 4046325), (5, 2427795), (9, 1348775), (15, 809265), (25, 485559), (45, 269755), (75, 161853), (225, 53951)]