19020485

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{1999}}^1$

素因数の和:2188

約数の個数: 16

約数和(自身を含む): 25056000

約数和(自身を除く): 6035515

約数列:

[1, 5, 11, 55, 173, 865, 1903, 1999, 9515, 9995, 21989, 109945, 345827, 1729135, 3804097, 19020485]

約数ペア:

[(1, 19020485), (5, 3804097), (11, 1729135), (55, 345827), (173, 109945), (865, 21989), (1903, 9995), (1999, 9515)]