220171731

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{28657}}^1$

素因数の和:28870

約数の個数: 16

約数和(自身を含む): 317759904

約数和(自身を除く): 97588173

約数列:

[1, 3, 13, 39, 197, 591, 2561, 7683, 28657, 85971, 372541, 1117623, 5645429, 16936287, 73390577, 220171731]

約数ペア:

[(1, 220171731), (3, 73390577), (13, 16936287), (39, 5645429), (197, 1117623), (591, 372541), (2561, 85971), (7683, 28657)]