26780103

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{4127}}^1$

素因数の和:4243

約数の個数: 24

約数和(自身を含む): 44648448

約数和(自身を除く): 17868345

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 4127, 6489, 12381, 28889, 37143, 86667, 260001, 425081, 1275243, 2975567, 3825729, 8926701, 26780103]

約数ペア:

[(1, 26780103), (3, 8926701), (7, 3825729), (9, 2975567), (21, 1275243), (63, 425081), (103, 260001), (309, 86667), (721, 37143), (927, 28889), (2163, 12381), (4127, 6489)]