21083748

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{503}}^1$

素因数の和:1016

約数の個数: 48

約数和(自身を含む): 56448000

約数和(自身を除く): 35364252

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 499, 503, 998, 1006, 1497, 1509, 1996, 2012, 2994, 3018, 3493, 3521, 5988, 6036, 6986, 7042, 10479, 10563, 13972, 14084, 20958, 21126, 41916, 42252, 250997, 501994, 752991, 1003988, 1505982, 1756979, 3011964, 3513958, 5270937, 7027916, 10541874, 21083748]

約数ペア:

[(1, 21083748), (2, 10541874), (3, 7027916), (4, 5270937), (6, 3513958), (7, 3011964), (12, 1756979), (14, 1505982), (21, 1003988), (28, 752991), (42, 501994), (84, 250997), (499, 42252), (503, 41916), (998, 21126), (1006, 20958), (1497, 14084), (1509, 13972), (1996, 10563), (2012, 10479), (2994, 7042), (3018, 6986), (3493, 6036), (3521, 5988)]