20673921

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{3719}}^1$

素因数の和:3848

約数の個数: 16

約数和(自身を含む): 29462400

約数和(自身を除く): 8788479

約数列:

[1, 3, 17, 51, 109, 327, 1853, 3719, 5559, 11157, 63223, 189669, 405371, 1216113, 6891307, 20673921]

約数ペア:

[(1, 20673921), (3, 6891307), (17, 1216113), (51, 405371), (109, 189669), (327, 63223), (1853, 11157), (3719, 5559)]