19985768

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{227111}}^1$

素因数の和:227128

約数の個数: 16

約数和(自身を含む): 40880160

約数和(自身を除く): 20894392

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 227111, 454222, 908444, 1816888, 2498221, 4996442, 9992884, 19985768]

約数ペア:

[(1, 19985768), (2, 9992884), (4, 4996442), (8, 2498221), (11, 1816888), (22, 908444), (44, 454222), (88, 227111)]