19539716

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{16229}}^1$

素因数の和:16283

約数の個数: 24

約数和(自身を含む): 39990720

約数和(自身を除く): 20451004

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 16229, 32458, 64916, 113603, 227206, 454412, 697847, 1395694, 2791388, 4884929, 9769858, 19539716]

約数ペア:

[(1, 19539716), (2, 9769858), (4, 4884929), (7, 2791388), (14, 1395694), (28, 697847), (43, 454412), (86, 227206), (172, 113603), (301, 64916), (602, 32458), (1204, 16229)]