19811890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{283027}}^1$

素因数の和:283041

約数の個数: 16

約数和(自身を含む): 40756032

約数和(自身を除く): 20944142

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 283027, 566054, 1415135, 1981189, 2830270, 3962378, 9905945, 19811890]

約数ペア:

[(1, 19811890), (2, 9905945), (5, 3962378), (7, 2830270), (10, 1981189), (14, 1415135), (35, 566054), (70, 283027)]