21348138

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{7159}}^1$

素因数の和:7242

約数の個数: 32

約数和(自身を含む): 49489920

約数和(自身を除く): 28141782

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 71, 142, 213, 426, 497, 994, 1491, 2982, 7159, 14318, 21477, 42954, 50113, 100226, 150339, 300678, 508289, 1016578, 1524867, 3049734, 3558023, 7116046, 10674069, 21348138]

約数ペア:

[(1, 21348138), (2, 10674069), (3, 7116046), (6, 3558023), (7, 3049734), (14, 1524867), (21, 1016578), (42, 508289), (71, 300678), (142, 150339), (213, 100226), (426, 50113), (497, 42954), (994, 21477), (1491, 14318), (2982, 7159)]