20121695991

素因数分解:

$3^2\times {\mathrm{1669}}^1\times {\mathrm{1339571}}^1$

素因数の和:1341246

約数の個数: 12

約数和(自身を含む): 29082108120

約数和(自身を除く): 8960412129

約数列:

[1, 3, 9, 1669, 5007, 15021, 1339571, 4018713, 12056139, 2235743999, 6707231997, 20121695991]

約数ペア:

[(1, 20121695991), (3, 6707231997), (9, 2235743999), (1669, 12056139), (5007, 4018713), (15021, 1339571)]