20019496

素因数分解:

$2^3\times 7^1\times {\mathrm{389}}^1\times {\mathrm{919}}^1$

素因数の和:1321

約数の個数: 32

約数和(自身を含む): 43056000

約数和(自身を除く): 23036504

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 389, 778, 919, 1556, 1838, 2723, 3112, 3676, 5446, 6433, 7352, 10892, 12866, 21784, 25732, 51464, 357491, 714982, 1429964, 2502437, 2859928, 5004874, 10009748, 20019496]

約数ペア:

[(1, 20019496), (2, 10009748), (4, 5004874), (7, 2859928), (8, 2502437), (14, 1429964), (28, 714982), (56, 357491), (389, 51464), (778, 25732), (919, 21784), (1556, 12866), (1838, 10892), (2723, 7352), (3112, 6433), (3676, 5446)]