21285126

素因数分解:

$2^1\times 3^3\times {\mathrm{394169}}^1$

素因数の和:394180

約数の個数: 16

約数和(自身を含む): 47300400

約数和(自身を除く): 26015274

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 394169, 788338, 1182507, 2365014, 3547521, 7095042, 10642563, 21285126]

約数ペア:

[(1, 21285126), (2, 10642563), (3, 7095042), (6, 3547521), (9, 2365014), (18, 1182507), (27, 788338), (54, 394169)]