21380079

素因数分解:

$3^1\times 7^1\times {\mathrm{883}}^1\times {\mathrm{1153}}^1$

素因数の和:2046

約数の個数: 16

約数和(自身を含む): 32644352

約数和(自身を除く): 11264273

約数列:

[1, 3, 7, 21, 883, 1153, 2649, 3459, 6181, 8071, 18543, 24213, 1018099, 3054297, 7126693, 21380079]

約数ペア:

[(1, 21380079), (3, 7126693), (7, 3054297), (21, 1018099), (883, 24213), (1153, 18543), (2649, 8071), (3459, 6181)]