21071956

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{227}}^1\times {\mathrm{1009}}^1$

素因数の和:1263

約数の個数: 24

約数和(自身を含む): 38687040

約数和(自身を除く): 17615084

約数列:

[1, 2, 4, 23, 46, 92, 227, 454, 908, 1009, 2018, 4036, 5221, 10442, 20884, 23207, 46414, 92828, 229043, 458086, 916172, 5267989, 10535978, 21071956]

約数ペア:

[(1, 21071956), (2, 10535978), (4, 5267989), (23, 916172), (46, 458086), (92, 229043), (227, 92828), (454, 46414), (908, 23207), (1009, 20884), (2018, 10442), (4036, 5221)]