128472057

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{16057}}^1$

素因数の和:16197

約数の個数: 24

約数和(自身を含む): 213764096

約数和(自身を除く): 85292039

約数列:

[1, 3, 7, 9, 21, 63, 127, 381, 889, 1143, 2667, 8001, 16057, 48171, 112399, 144513, 337197, 1011591, 2039239, 6117717, 14274673, 18353151, 42824019, 128472057]

約数ペア:

[(1, 128472057), (3, 42824019), (7, 18353151), (9, 14274673), (21, 6117717), (63, 2039239), (127, 1011591), (381, 337197), (889, 144513), (1143, 112399), (2667, 48171), (8001, 16057)]