20403668

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{227}}^1\times {\mathrm{977}}^1$

素因数の和:1231

約数の個数: 24

約数和(自身を含む): 37461312

約数和(自身を除く): 17057644

約数列:

[1, 2, 4, 23, 46, 92, 227, 454, 908, 977, 1954, 3908, 5221, 10442, 20884, 22471, 44942, 89884, 221779, 443558, 887116, 5100917, 10201834, 20403668]

約数ペア:

[(1, 20403668), (2, 10201834), (4, 5100917), (23, 887116), (46, 443558), (92, 221779), (227, 89884), (454, 44942), (908, 22471), (977, 20884), (1954, 10442), (3908, 5221)]