206668161

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{31849}}^1$

素因数の和:31965

約数の個数: 24

約数和(自身を含む): 344489600

約数和(自身を除く): 137821439

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 6489, 31849, 95547, 222943, 286641, 668829, 2006487, 3280447, 9841341, 22963129, 29524023, 68889387, 206668161]

約数ペア:

[(1, 206668161), (3, 68889387), (7, 29524023), (9, 22963129), (21, 9841341), (63, 3280447), (103, 2006487), (309, 668829), (721, 286641), (927, 222943), (2163, 95547), (6489, 31849)]