20804995

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{1601}}^1$

素因数の和:1742

約数の個数: 16

約数和(自身を含む): 26298432

約数和(自身を除く): 5493437

約数列:

[1, 5, 23, 113, 115, 565, 1601, 2599, 8005, 12995, 36823, 180913, 184115, 904565, 4160999, 20804995]

約数ペア:

[(1, 20804995), (5, 4160999), (23, 904565), (113, 184115), (115, 180913), (565, 36823), (1601, 12995), (2599, 8005)]