1981303856

素因数分解:

$2^4\times 7^1\times {\mathrm{17690213}}^1$

素因数の和:17690228

約数の個数: 20

約数和(自身を含む): 4387173072

約数和(自身を除く): 2405869216

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 17690213, 35380426, 70760852, 123831491, 141521704, 247662982, 283043408, 495325964, 990651928, 1981303856]

約数ペア:

[(1, 1981303856), (2, 990651928), (4, 495325964), (7, 283043408), (8, 247662982), (14, 141521704), (16, 123831491), (28, 70760852), (56, 35380426), (112, 17690213)]