1291264137

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{271217}}^1$

素因数の和:271269

約数の個数: 18

約数和(自身を含む): 1949786202

約数和(自身を除く): 658522065

約数列:

[1, 3, 9, 23, 69, 207, 529, 1587, 4761, 271217, 813651, 2440953, 6237991, 18713973, 56141919, 143473793, 430421379, 1291264137]

約数ペア:

[(1, 1291264137), (3, 430421379), (9, 143473793), (23, 56141919), (69, 18713973), (207, 6237991), (529, 2440953), (1587, 813651), (4761, 271217)]