17961783

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 30096000

約数和(自身を除く): 12134217

約数列:

[1, 3, 7, 19, 21, 49, 57, 59, 109, 133, 147, 177, 327, 399, 413, 763, 931, 1121, 1239, 2071, 2289, 2793, 2891, 3363, 5341, 6213, 6431, 7847, 8673, 14497, 16023, 19293, 23541, 43491, 45017, 54929, 101479, 122189, 135051, 164787, 304437, 315119, 366567, 855323, 945357, 2565969, 5987261, 17961783]

約数ペア:

[(1, 17961783), (3, 5987261), (7, 2565969), (19, 945357), (21, 855323), (49, 366567), (57, 315119), (59, 304437), (109, 164787), (133, 135051), (147, 122189), (177, 101479), (327, 54929), (399, 45017), (413, 43491), (763, 23541), (931, 19293), (1121, 16023), (1239, 14497), (2071, 8673), (2289, 7847), (2793, 6431), (2891, 6213), (3363, 5341)]