21680514

素因数分解:

$2^1\times 3^3\times {\mathrm{43}}^1\times {\mathrm{9337}}^1$

素因数の和:9391

約数の個数: 32

約数和(自身を含む): 49304640

約数和(自身を除く): 27624126

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 86, 129, 258, 387, 774, 1161, 2322, 9337, 18674, 28011, 56022, 84033, 168066, 252099, 401491, 504198, 802982, 1204473, 2408946, 3613419, 7226838, 10840257, 21680514]

約数ペア:

[(1, 21680514), (2, 10840257), (3, 7226838), (6, 3613419), (9, 2408946), (18, 1204473), (27, 802982), (43, 504198), (54, 401491), (86, 252099), (129, 168066), (258, 84033), (387, 56022), (774, 28011), (1161, 18674), (2322, 9337)]