2011111991

素因数分解:

$7^1\times {\mathrm{71}}^2\times {\mathrm{56993}}^1$

素因数の和:57142

約数の個数: 12

約数和(自身を含む): 2331282576

約数和(自身を除く): 320170585

約数列:

[1, 7, 71, 497, 5041, 35287, 56993, 398951, 4046503, 28325521, 287301713, 2011111991]

約数ペア:

[(1, 2011111991), (7, 287301713), (71, 28325521), (497, 4046503), (5041, 398951), (35287, 56993)]