19237168

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{27961}}^1$

素因数の和:28012

約数の個数: 20

約数和(自身を含む): 38140168

約数和(自身を除く): 18903000

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 27961, 55922, 111844, 223688, 447376, 1202323, 2404646, 4809292, 9618584, 19237168]

約数ペア:

[(1, 19237168), (2, 9618584), (4, 4809292), (8, 2404646), (16, 1202323), (43, 447376), (86, 223688), (172, 111844), (344, 55922), (688, 27961)]