21426513

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{1019}}^1$

素因数の和:1228

約数の個数: 16

約数和(自身を含む): 29441280

約数和(自身を除く): 8014767

約数列:

[1, 3, 43, 129, 163, 489, 1019, 3057, 7009, 21027, 43817, 131451, 166097, 498291, 7142171, 21426513]

約数ペア:

[(1, 21426513), (3, 7142171), (43, 498291), (129, 166097), (163, 131451), (489, 43817), (1019, 21027), (3057, 7009)]