20820324

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3491}}^1$

素因数の和:3576

約数の個数: 48

約数和(自身を含む): 56318976

約数和(自身を除く): 35498652

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 71, 84, 142, 213, 284, 426, 497, 852, 994, 1491, 1988, 2982, 3491, 5964, 6982, 10473, 13964, 20946, 24437, 41892, 48874, 73311, 97748, 146622, 247861, 293244, 495722, 743583, 991444, 1487166, 1735027, 2974332, 3470054, 5205081, 6940108, 10410162, 20820324]

約数ペア:

[(1, 20820324), (2, 10410162), (3, 6940108), (4, 5205081), (6, 3470054), (7, 2974332), (12, 1735027), (14, 1487166), (21, 991444), (28, 743583), (42, 495722), (71, 293244), (84, 247861), (142, 146622), (213, 97748), (284, 73311), (426, 48874), (497, 41892), (852, 24437), (994, 20946), (1491, 13964), (1988, 10473), (2982, 6982), (3491, 5964)]