19128765

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{631}}^1$

素因数の和:729

約数の個数: 32

約数和(自身を含む): 32034816

約数和(自身を除く): 12906051

約数列:

[1, 3, 5, 15, 43, 47, 129, 141, 215, 235, 631, 645, 705, 1893, 2021, 3155, 6063, 9465, 10105, 27133, 29657, 30315, 81399, 88971, 135665, 148285, 406995, 444855, 1275251, 3825753, 6376255, 19128765]

約数ペア:

[(1, 19128765), (3, 6376255), (5, 3825753), (15, 1275251), (43, 444855), (47, 406995), (129, 148285), (141, 135665), (215, 88971), (235, 81399), (631, 30315), (645, 29657), (705, 27133), (1893, 10105), (2021, 9465), (3155, 6063)]