21082216

素因数分解:

$2^3\times {\mathrm{887}}^1\times {\mathrm{2971}}^1$

素因数の和:3864

約数の個数: 16

約数和(自身を含む): 39587040

約数和(自身を除く): 18504824

約数列:

[1, 2, 4, 8, 887, 1774, 2971, 3548, 5942, 7096, 11884, 23768, 2635277, 5270554, 10541108, 21082216]

約数ペア:

[(1, 21082216), (2, 10541108), (4, 5270554), (8, 2635277), (887, 23768), (1774, 11884), (2971, 7096), (3548, 5942)]