66778551

素因数分解:

$3^2\times 7^1\times {\mathrm{811}}^1\times {\mathrm{1307}}^1$

素因数の和:2131

約数の個数: 24

約数和(自身を含む): 110457984

約数和(自身を除く): 43679433

約数列:

[1, 3, 7, 9, 21, 63, 811, 1307, 2433, 3921, 5677, 7299, 9149, 11763, 17031, 27447, 51093, 82341, 1059977, 3179931, 7419839, 9539793, 22259517, 66778551]

約数ペア:

[(1, 66778551), (3, 22259517), (7, 9539793), (9, 7419839), (21, 3179931), (63, 1059977), (811, 82341), (1307, 51093), (2433, 27447), (3921, 17031), (5677, 11763), (7299, 9149)]