20656972

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43397}}^1$

素因数の和:43425

約数の個数: 24

約数和(自身を含む): 43745184

約数和(自身を除く): 23088212

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 43397, 86794, 173588, 303779, 607558, 737749, 1215116, 1475498, 2950996, 5164243, 10328486, 20656972]

約数ペア:

[(1, 20656972), (2, 10328486), (4, 5164243), (7, 2950996), (14, 1475498), (17, 1215116), (28, 737749), (34, 607558), (68, 303779), (119, 173588), (238, 86794), (476, 43397)]