127788883173

素因数分解:

$3^4\times 7^1\times {\mathrm{225377219}}^1$

素因数の和:225377238

約数の個数: 20

約数和(自身を含む): 218165148960

約数和(自身を除く): 90376265787

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 225377219, 676131657, 1577640533, 2028394971, 4732921599, 6085184913, 14198764797, 18255554739, 42596294391, 127788883173]

約数ペア:

[(1, 127788883173), (3, 42596294391), (7, 18255554739), (9, 14198764797), (21, 6085184913), (27, 4732921599), (63, 2028394971), (81, 1577640533), (189, 676131657), (567, 225377219)]