81329388

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{977}}^1\times {\mathrm{991}}^1$

素因数の和:1982

約数の個数: 48

約数和(自身を含む): 217319424

約数和(自身を除く): 135990036

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 977, 991, 1954, 1982, 2931, 2973, 3908, 3964, 5862, 5946, 6839, 6937, 11724, 11892, 13678, 13874, 20517, 20811, 27356, 27748, 41034, 41622, 82068, 83244, 968207, 1936414, 2904621, 3872828, 5809242, 6777449, 11618484, 13554898, 20332347, 27109796, 40664694, 81329388]

約数ペア:

[(1, 81329388), (2, 40664694), (3, 27109796), (4, 20332347), (6, 13554898), (7, 11618484), (12, 6777449), (14, 5809242), (21, 3872828), (28, 2904621), (42, 1936414), (84, 968207), (977, 83244), (991, 82068), (1954, 41622), (1982, 41034), (2931, 27748), (2973, 27356), (3908, 20811), (3964, 20517), (5862, 13874), (5946, 13678), (6839, 11892), (6937, 11724)]