20281809

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{2503}}^1$

素因数の和:2616

約数の個数: 16

約数和(自身を含む): 28164992

約数和(自身を除く): 7883183

約数列:

[1, 3, 37, 73, 111, 219, 2503, 2701, 7509, 8103, 92611, 182719, 277833, 548157, 6760603, 20281809]

約数ペア:

[(1, 20281809), (3, 6760603), (37, 548157), (73, 277833), (111, 182719), (219, 92611), (2503, 8103), (2701, 7509)]