19681149

素因数分解:

$3^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1\times {\mathrm{433}}^1$

素因数の和:684

約数の個数: 16

約数和(自身を含む): 26734400

約数和(自身を除く): 7053251

約数列:

[1, 3, 109, 139, 327, 417, 433, 1299, 15151, 45453, 47197, 60187, 141591, 180561, 6560383, 19681149]

約数ペア:

[(1, 19681149), (3, 6560383), (109, 180561), (139, 141591), (327, 60187), (417, 47197), (433, 45453), (1299, 15151)]