21153916

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2339}}^1$

素因数の和:2386

約数の個数: 48

約数和(自身を含む): 47174400

約数和(自身を除く): 26020484

約数列:

[1, 2, 4, 7, 14, 17, 19, 28, 34, 38, 68, 76, 119, 133, 238, 266, 323, 476, 532, 646, 1292, 2261, 2339, 4522, 4678, 9044, 9356, 16373, 32746, 39763, 44441, 65492, 79526, 88882, 159052, 177764, 278341, 311087, 556682, 622174, 755497, 1113364, 1244348, 1510994, 3021988, 5288479, 10576958, 21153916]

約数ペア:

[(1, 21153916), (2, 10576958), (4, 5288479), (7, 3021988), (14, 1510994), (17, 1244348), (19, 1113364), (28, 755497), (34, 622174), (38, 556682), (68, 311087), (76, 278341), (119, 177764), (133, 159052), (238, 88882), (266, 79526), (323, 65492), (476, 44441), (532, 39763), (646, 32746), (1292, 16373), (2261, 9356), (2339, 9044), (4522, 4678)]