20452984

素因数分解:

$2^3\times {\mathrm{263}}^1\times {\mathrm{9721}}^1$

素因数の和:9990

約数の個数: 16

約数和(自身を含む): 38499120

約数和(自身を除く): 18046136

約数列:

[1, 2, 4, 8, 263, 526, 1052, 2104, 9721, 19442, 38884, 77768, 2556623, 5113246, 10226492, 20452984]

約数ペア:

[(1, 20452984), (2, 10226492), (4, 5113246), (8, 2556623), (263, 77768), (526, 38884), (1052, 19442), (2104, 9721)]