21730317

素因数分解:

$3^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{5717}}^1$

素因数の和:5908

約数の個数: 16

約数和(自身を含む): 33301632

約数和(自身を除く): 11571315

約数列:

[1, 3, 7, 21, 181, 543, 1267, 3801, 5717, 17151, 40019, 120057, 1034777, 3104331, 7243439, 21730317]

約数ペア:

[(1, 21730317), (3, 7243439), (7, 3104331), (21, 1034777), (181, 120057), (543, 40019), (1267, 17151), (3801, 5717)]