19911176

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{80287}}^1$

素因数の和:80324

約数の個数: 16

約数和(自身を含む): 38538240

約数和(自身を除く): 18627064

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 80287, 160574, 321148, 642296, 2488897, 4977794, 9955588, 19911176]

約数ペア:

[(1, 19911176), (2, 9955588), (4, 4977794), (8, 2488897), (31, 642296), (62, 321148), (124, 160574), (248, 80287)]