20499291

素因数分解:

$3^3\times {\mathrm{487}}^1\times {\mathrm{1559}}^1$

素因数の和:2055

約数の個数: 16

約数和(自身を含む): 30451200

約数和(自身を除く): 9951909

約数列:

[1, 3, 9, 27, 487, 1461, 1559, 4383, 4677, 13149, 14031, 42093, 759233, 2277699, 6833097, 20499291]

約数ペア:

[(1, 20499291), (3, 6833097), (9, 2277699), (27, 759233), (487, 42093), (1461, 14031), (1559, 13149), (4383, 4677)]