127952181

素因数分解:

$3^2\times 7^2\times {\mathrm{290141}}^1$

素因数の和:290161

約数の個数: 18

約数和(自身を含む): 214995222

約数和(自身を除く): 87043041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 290141, 870423, 2030987, 2611269, 6092961, 14216909, 18278883, 42650727, 127952181]

約数ペア:

[(1, 127952181), (3, 42650727), (7, 18278883), (9, 14216909), (21, 6092961), (49, 2611269), (63, 2030987), (147, 870423), (441, 290141)]