21408256

素因数分解:

$2^9\times {\mathrm{41813}}^1$

素因数の和:41831

約数の個数: 20

約数和(自身を含む): 42775722

約数和(自身を除く): 21367466

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 41813, 83626, 167252, 334504, 669008, 1338016, 2676032, 5352064, 10704128, 21408256]

約数ペア:

[(1, 21408256), (2, 10704128), (4, 5352064), (8, 2676032), (16, 1338016), (32, 669008), (64, 334504), (128, 167252), (256, 83626), (512, 41813)]