19201808

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{16903}}^1$

素因数の和:16982

約数の個数: 20

約数和(自身を含む): 37729728

約数和(自身を除く): 18527920

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 16903, 33806, 67612, 135224, 270448, 1200113, 2400226, 4800452, 9600904, 19201808]

約数ペア:

[(1, 19201808), (2, 9600904), (4, 4800452), (8, 2400226), (16, 1200113), (71, 270448), (142, 135224), (284, 67612), (568, 33806), (1136, 16903)]