28520891

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{20071}}^1$

素因数の和:20114

約数の個数: 12

約数和(自身を含む): 34323120

約数和(自身を除く): 5802229

約数列:

[1, 7, 29, 49, 203, 1421, 20071, 140497, 582059, 983479, 4074413, 28520891]

約数ペア:

[(1, 28520891), (7, 4074413), (29, 983479), (49, 582059), (203, 140497), (1421, 20071)]