20801913

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{27407}}^1$

素因数の和:27444

約数の個数: 16

約数和(自身を含む): 31574016

約数和(自身を除く): 10772103

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 27407, 82221, 301477, 630361, 904431, 1891083, 6933971, 20801913]

約数ペア:

[(1, 20801913), (3, 6933971), (11, 1891083), (23, 904431), (33, 630361), (69, 301477), (253, 82221), (759, 27407)]