19908904

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{146389}}^1$

素因数の和:146412

約数の個数: 16

約数和(自身を含む): 39525300

約数和(自身を除く): 19616396

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 146389, 292778, 585556, 1171112, 2488613, 4977226, 9954452, 19908904]

約数ペア:

[(1, 19908904), (2, 9954452), (4, 4977226), (8, 2488613), (17, 1171112), (34, 585556), (68, 292778), (136, 146389)]