19788765

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1093}}^1$

素因数の和:1189

約数の個数: 32

約数和(自身を含む): 34027776

約数和(自身を除く): 14239011

約数列:

[1, 3, 5, 15, 17, 51, 71, 85, 213, 255, 355, 1065, 1093, 1207, 3279, 3621, 5465, 6035, 16395, 18105, 18581, 55743, 77603, 92905, 232809, 278715, 388015, 1164045, 1319251, 3957753, 6596255, 19788765]

約数ペア:

[(1, 19788765), (3, 6596255), (5, 3957753), (15, 1319251), (17, 1164045), (51, 388015), (71, 278715), (85, 232809), (213, 92905), (255, 77603), (355, 55743), (1065, 18581), (1093, 18105), (1207, 16395), (3279, 6035), (3621, 5465)]