18721482

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{499}}^1$

素因数の和:567

約数の個数: 48

約数和(自身を含む): 41724000

約数和(自身を除く): 23002518

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 74, 78, 111, 169, 222, 338, 481, 499, 507, 962, 998, 1014, 1443, 1497, 2886, 2994, 6253, 6487, 12506, 12974, 18463, 18759, 19461, 36926, 37518, 38922, 55389, 84331, 110778, 168662, 240019, 252993, 480038, 505986, 720057, 1440114, 3120247, 6240494, 9360741, 18721482]

約数ペア:

[(1, 18721482), (2, 9360741), (3, 6240494), (6, 3120247), (13, 1440114), (26, 720057), (37, 505986), (39, 480038), (74, 252993), (78, 240019), (111, 168662), (169, 110778), (222, 84331), (338, 55389), (481, 38922), (499, 37518), (507, 36926), (962, 19461), (998, 18759), (1014, 18463), (1443, 12974), (1497, 12506), (2886, 6487), (2994, 6253)]