131413149

素因数分解:

$3^2\times 7^2\times {\mathrm{297989}}^1$

素因数の和:298009

約数の個数: 18

約数和(自身を含む): 220810590

約数和(自身を除く): 89397441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 297989, 893967, 2085923, 2681901, 6257769, 14601461, 18773307, 43804383, 131413149]

約数ペア:

[(1, 131413149), (3, 43804383), (7, 18773307), (9, 14601461), (21, 6257769), (49, 2681901), (63, 2085923), (147, 893967), (441, 297989)]