21067678

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{10651}}^1$

素因数の和:10719

約数の個数: 16

約数和(自身を含む): 33745536

約数和(自身を除く): 12677858

約数列:

[1, 2, 23, 43, 46, 86, 989, 1978, 10651, 21302, 244973, 457993, 489946, 915986, 10533839, 21067678]

約数ペア:

[(1, 21067678), (2, 10533839), (23, 915986), (43, 489946), (46, 457993), (86, 244973), (989, 21302), (1978, 10651)]