19380018

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 46061568

約数和(自身を除く): 26681550

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 67, 71, 97, 134, 142, 194, 201, 213, 291, 402, 426, 469, 497, 582, 679, 938, 994, 1358, 1407, 1491, 2037, 2814, 2982, 4074, 4757, 6499, 6887, 9514, 12998, 13774, 14271, 19497, 20661, 28542, 33299, 38994, 41322, 45493, 48209, 66598, 90986, 96418, 99897, 136479, 144627, 199794, 272958, 289254, 461429, 922858, 1384287, 2768574, 3230003, 6460006, 9690009, 19380018]

約数ペア:

[(1, 19380018), (2, 9690009), (3, 6460006), (6, 3230003), (7, 2768574), (14, 1384287), (21, 922858), (42, 461429), (67, 289254), (71, 272958), (97, 199794), (134, 144627), (142, 136479), (194, 99897), (201, 96418), (213, 90986), (291, 66598), (402, 48209), (426, 45493), (469, 41322), (497, 38994), (582, 33299), (679, 28542), (938, 20661), (994, 19497), (1358, 14271), (1407, 13774), (1491, 12998), (2037, 9514), (2814, 6887), (2982, 6499), (4074, 4757)]