21699988

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{307}}^1\times {\mathrm{431}}^1$

素因数の和:783

約数の個数: 24

約数和(自身を含む): 39118464

約数和(自身を除く): 17418476

約数列:

[1, 2, 4, 41, 82, 164, 307, 431, 614, 862, 1228, 1724, 12587, 17671, 25174, 35342, 50348, 70684, 132317, 264634, 529268, 5424997, 10849994, 21699988]

約数ペア:

[(1, 21699988), (2, 10849994), (4, 5424997), (41, 529268), (82, 264634), (164, 132317), (307, 70684), (431, 50348), (614, 35342), (862, 25174), (1228, 17671), (1724, 12587)]