7978521

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{487}}^1$

素因数の和:660

約数の個数: 16

約数和(自身を含む): 10993664

約数和(自身を除く): 3015143

約数列:

[1, 3, 43, 127, 129, 381, 487, 1461, 5461, 16383, 20941, 61849, 62823, 185547, 2659507, 7978521]

約数ペア:

[(1, 7978521), (3, 2659507), (43, 185547), (127, 62823), (129, 61849), (381, 20941), (487, 16383), (1461, 5461)]