128383458

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{21991}}^1$

素因数の和:22142

約数の個数: 32

約数和(自身を含む): 295572480

約数和(自身を除く): 167189022

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 139, 278, 417, 834, 973, 1946, 2919, 5838, 21991, 43982, 65973, 131946, 153937, 307874, 461811, 923622, 3056749, 6113498, 9170247, 18340494, 21397243, 42794486, 64191729, 128383458]

約数ペア:

[(1, 128383458), (2, 64191729), (3, 42794486), (6, 21397243), (7, 18340494), (14, 9170247), (21, 6113498), (42, 3056749), (139, 923622), (278, 461811), (417, 307874), (834, 153937), (973, 131946), (1946, 65973), (2919, 43982), (5838, 21991)]