21506508

素因数分解:

$2^2\times 3^2\times {\mathrm{597403}}^1$

素因数の和:597413

約数の個数: 18

約数和(自身を含む): 54363764

約数和(自身を除く): 32857256

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 597403, 1194806, 1792209, 2389612, 3584418, 5376627, 7168836, 10753254, 21506508]

約数ペア:

[(1, 21506508), (2, 10753254), (3, 7168836), (4, 5376627), (6, 3584418), (9, 2389612), (12, 1792209), (18, 1194806), (36, 597403)]