31906143

素因数分解:

$3^9\times {\mathrm{1621}}^1$

素因数の和:1648

約数の個数: 20

約数和(自身を含む): 47887928

約数和(自身を除く): 15981785

約数列:

[1, 3, 9, 27, 81, 243, 729, 1621, 2187, 4863, 6561, 14589, 19683, 43767, 131301, 393903, 1181709, 3545127, 10635381, 31906143]

約数ペア:

[(1, 31906143), (3, 10635381), (9, 3545127), (27, 1181709), (81, 393903), (243, 131301), (729, 43767), (1621, 19683), (2187, 14589), (4863, 6561)]