21274946

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{661}}^1$

素因数の和:711

約数の個数: 48

約数和(自身を含む): 42262080

約数和(自身を除く): 20987134

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 77, 121, 133, 154, 209, 242, 266, 418, 661, 847, 1322, 1463, 1694, 2299, 2926, 4598, 4627, 7271, 9254, 12559, 14542, 16093, 25118, 32186, 50897, 79981, 87913, 101794, 138149, 159962, 175826, 276298, 559867, 967043, 1119734, 1519639, 1934086, 3039278, 10637473, 21274946]

約数ペア:

[(1, 21274946), (2, 10637473), (7, 3039278), (11, 1934086), (14, 1519639), (19, 1119734), (22, 967043), (38, 559867), (77, 276298), (121, 175826), (133, 159962), (154, 138149), (209, 101794), (242, 87913), (266, 79981), (418, 50897), (661, 32186), (847, 25118), (1322, 16093), (1463, 14542), (1694, 12559), (2299, 9254), (2926, 7271), (4598, 4627)]