21008127

素因数分解:

$3^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{5527}}^1$

素因数の和:5718

約数の個数: 16

約数和(自身を含む): 32195072

約数和(自身を除く): 11186945

約数列:

[1, 3, 7, 21, 181, 543, 1267, 3801, 5527, 16581, 38689, 116067, 1000387, 3001161, 7002709, 21008127]

約数ペア:

[(1, 21008127), (3, 7002709), (7, 3001161), (21, 1000387), (181, 116067), (543, 38689), (1267, 16581), (3801, 5527)]