28001408

素因数分解:

$2^7\times {\mathrm{218761}}^1$

素因数の和:218775

約数の個数: 16

約数和(自身を含む): 55784310

約数和(自身を除く): 27782902

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 218761, 437522, 875044, 1750088, 3500176, 7000352, 14000704, 28001408]

約数ペア:

[(1, 28001408), (2, 14000704), (4, 7000352), (8, 3500176), (16, 1750088), (32, 875044), (64, 437522), (128, 218761)]