21048776

素因数分解:

$2^3\times 7^1\times {\mathrm{409}}^1\times {\mathrm{919}}^1$

素因数の和:1341

約数の個数: 32

約数和(自身を含む): 45264000

約数和(自身を除く): 24215224

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 409, 818, 919, 1636, 1838, 2863, 3272, 3676, 5726, 6433, 7352, 11452, 12866, 22904, 25732, 51464, 375871, 751742, 1503484, 2631097, 3006968, 5262194, 10524388, 21048776]

約数ペア:

[(1, 21048776), (2, 10524388), (4, 5262194), (7, 3006968), (8, 2631097), (14, 1503484), (28, 751742), (56, 375871), (409, 51464), (818, 25732), (919, 22904), (1636, 12866), (1838, 11452), (2863, 7352), (3272, 6433), (3676, 5726)]