20391256

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{134153}}^1$

素因数の和:134178

約数の個数: 16

約数和(自身を含む): 40246200

約数和(自身を除く): 19854944

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 134153, 268306, 536612, 1073224, 2548907, 5097814, 10195628, 20391256]

約数ペア:

[(1, 20391256), (2, 10195628), (4, 5097814), (8, 2548907), (19, 1073224), (38, 536612), (76, 268306), (152, 134153)]