19726465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1$

素因数の和:517

約数の個数: 32

約数和(自身を含む): 27878400

約数和(自身を除く): 8151935

約数列:

[1, 5, 11, 19, 43, 55, 95, 209, 215, 439, 473, 817, 1045, 2195, 2365, 4085, 4829, 8341, 8987, 18877, 24145, 41705, 44935, 91751, 94385, 207647, 358663, 458755, 1038235, 1793315, 3945293, 19726465]

約数ペア:

[(1, 19726465), (5, 3945293), (11, 1793315), (19, 1038235), (43, 458755), (55, 358663), (95, 207647), (209, 94385), (215, 91751), (439, 44935), (473, 41705), (817, 24145), (1045, 18877), (2195, 8987), (2365, 8341), (4085, 4829)]