28007892

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{661}}^1$

素因数の和:789

約数の個数: 72

約数和(自身を含む): 78073632

約数和(自身を除く): 50065740

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 107, 132, 198, 214, 321, 396, 428, 642, 661, 963, 1177, 1284, 1322, 1926, 1983, 2354, 2644, 3531, 3852, 3966, 4708, 5949, 7062, 7271, 7932, 10593, 11898, 14124, 14542, 21186, 21813, 23796, 29084, 42372, 43626, 65439, 70727, 87252, 130878, 141454, 212181, 261756, 282908, 424362, 636543, 777997, 848724, 1273086, 1555994, 2333991, 2546172, 3111988, 4667982, 7001973, 9335964, 14003946, 28007892]

約数ペア:

[(1, 28007892), (2, 14003946), (3, 9335964), (4, 7001973), (6, 4667982), (9, 3111988), (11, 2546172), (12, 2333991), (18, 1555994), (22, 1273086), (33, 848724), (36, 777997), (44, 636543), (66, 424362), (99, 282908), (107, 261756), (132, 212181), (198, 141454), (214, 130878), (321, 87252), (396, 70727), (428, 65439), (642, 43626), (661, 42372), (963, 29084), (1177, 23796), (1284, 21813), (1322, 21186), (1926, 14542), (1983, 14124), (2354, 11898), (2644, 10593), (3531, 7932), (3852, 7271), (3966, 7062), (4708, 5949)]