20249919

素因数分解:

$3^5\times {\mathrm{167}}^1\times {\mathrm{499}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 30576000

約数和(自身を除く): 10326081

約数列:

[1, 3, 9, 27, 81, 167, 243, 499, 501, 1497, 1503, 4491, 4509, 13473, 13527, 40419, 40581, 83333, 121257, 249999, 749997, 2249991, 6749973, 20249919]

約数ペア:

[(1, 20249919), (3, 6749973), (9, 2249991), (27, 749997), (81, 249999), (167, 121257), (243, 83333), (499, 40581), (501, 40419), (1497, 13527), (1503, 13473), (4491, 4509)]