2191959

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3163}}^1$

素因数の和:3187

約数の個数: 24

約数和(自身を含む): 3948672

約数和(自身を除く): 1756713

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 3163, 9489, 22141, 28467, 34793, 66423, 104379, 199269, 243551, 313137, 730653, 2191959]

約数ペア:

[(1, 2191959), (3, 730653), (7, 313137), (9, 243551), (11, 199269), (21, 104379), (33, 66423), (63, 34793), (77, 28467), (99, 22141), (231, 9489), (693, 3163)]