31891557

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{4271}}^1$

素因数の和:4424

約数の個数: 16

約数和(自身を含む): 45112320

約数和(自身を除く): 13220763

約数列:

[1, 3, 19, 57, 131, 393, 2489, 4271, 7467, 12813, 81149, 243447, 559501, 1678503, 10630519, 31891557]

約数ペア:

[(1, 31891557), (3, 10630519), (19, 1678503), (57, 559501), (131, 243447), (393, 81149), (2489, 12813), (4271, 7467)]