20165187

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{7561}}^1$

素因数の和:7698

約数の個数: 16

約数和(自身を含む): 30973952

約数和(自身を除く): 10808765

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 7561, 22683, 52927, 158781, 960247, 2880741, 6721729, 20165187]

約数ペア:

[(1, 20165187), (3, 6721729), (7, 2880741), (21, 960247), (127, 158781), (381, 52927), (889, 22683), (2667, 7561)]