19891928

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5003}}^1$

素因数の和:5087

約数の個数: 32

約数和(自身を含む): 43234560

約数和(自身を除く): 23342632

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 5003, 10006, 20012, 35021, 40024, 70042, 140084, 280168, 355213, 710426, 1420852, 2486491, 2841704, 4972982, 9945964, 19891928]

約数ペア:

[(1, 19891928), (2, 9945964), (4, 4972982), (7, 2841704), (8, 2486491), (14, 1420852), (28, 710426), (56, 355213), (71, 280168), (142, 140084), (284, 70042), (497, 40024), (568, 35021), (994, 20012), (1988, 10006), (3976, 5003)]