21479073

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 36771840

約数和(自身を除く): 15292767

約数列:

[1, 3, 7, 11, 21, 33, 77, 79, 107, 121, 231, 237, 321, 363, 553, 749, 847, 869, 1177, 1659, 2247, 2541, 2607, 3531, 6083, 8239, 8453, 9559, 12947, 18249, 24717, 25359, 28677, 38841, 59171, 66913, 90629, 92983, 177513, 200739, 271887, 278949, 650881, 1022813, 1952643, 3068439, 7159691, 21479073]

約数ペア:

[(1, 21479073), (3, 7159691), (7, 3068439), (11, 1952643), (21, 1022813), (33, 650881), (77, 278949), (79, 271887), (107, 200739), (121, 177513), (231, 92983), (237, 90629), (321, 66913), (363, 59171), (553, 38841), (749, 28677), (847, 25359), (869, 24717), (1177, 18249), (1659, 12947), (2247, 9559), (2541, 8453), (2607, 8239), (3531, 6083)]