20452191

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{1987}}^1$

素因数の和:2110

約数の個数: 16

約数和(自身を含む): 28245504

約数和(自身を除く): 7793313

約数列:

[1, 3, 47, 73, 141, 219, 1987, 3431, 5961, 10293, 93389, 145051, 280167, 435153, 6817397, 20452191]

約数ペア:

[(1, 20452191), (3, 6817397), (47, 435153), (73, 280167), (141, 145051), (219, 93389), (1987, 10293), (3431, 5961)]