31130121

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{20071}}^1$

素因数の和:20132

約数の個数: 16

約数和(自身を含む): 46245888

約数和(自身を除く): 15115767

約数列:

[1, 3, 11, 33, 47, 141, 517, 1551, 20071, 60213, 220781, 662343, 943337, 2830011, 10376707, 31130121]

約数ペア:

[(1, 31130121), (3, 10376707), (11, 2830011), (33, 943337), (47, 662343), (141, 220781), (517, 60213), (1551, 20071)]