19235391

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 32175360

約数和(自身を除く): 12939969

約数列:

[1, 3, 7, 19, 21, 49, 57, 71, 97, 133, 147, 213, 291, 399, 497, 679, 931, 1349, 1491, 1843, 2037, 2793, 3479, 4047, 4753, 5529, 6887, 9443, 10437, 12901, 14259, 20661, 28329, 38703, 48209, 66101, 90307, 130853, 144627, 198303, 270921, 337463, 392559, 915971, 1012389, 2747913, 6411797, 19235391]

約数ペア:

[(1, 19235391), (3, 6411797), (7, 2747913), (19, 1012389), (21, 915971), (49, 392559), (57, 337463), (71, 270921), (97, 198303), (133, 144627), (147, 130853), (213, 90307), (291, 66101), (399, 48209), (497, 38703), (679, 28329), (931, 20661), (1349, 14259), (1491, 12901), (1843, 10437), (2037, 9443), (2793, 6887), (3479, 5529), (4047, 4753)]