21504256

素因数分解:

$2^8\times {\mathrm{167}}^1\times {\mathrm{503}}^1$

素因数の和:686

約数の個数: 36

約数和(自身を含む): 43267392

約数和(自身を除く): 21763136

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 167, 256, 334, 503, 668, 1006, 1336, 2012, 2672, 4024, 5344, 8048, 10688, 16096, 21376, 32192, 42752, 64384, 84001, 128768, 168002, 336004, 672008, 1344016, 2688032, 5376064, 10752128, 21504256]

約数ペア:

[(1, 21504256), (2, 10752128), (4, 5376064), (8, 2688032), (16, 1344016), (32, 672008), (64, 336004), (128, 168002), (167, 128768), (256, 84001), (334, 64384), (503, 42752), (668, 32192), (1006, 21376), (1336, 16096), (2012, 10688), (2672, 8048), (4024, 5344)]