21480564

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{313}}^1$

素因数の和:389

約数の個数: 96

約数和(自身を含む): 61895680

約数和(自身を除く): 40415116

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 43, 57, 76, 84, 86, 114, 129, 133, 172, 228, 258, 266, 301, 313, 399, 516, 532, 602, 626, 798, 817, 903, 939, 1204, 1252, 1596, 1634, 1806, 1878, 2191, 2451, 3268, 3612, 3756, 4382, 4902, 5719, 5947, 6573, 8764, 9804, 11438, 11894, 13146, 13459, 17157, 17841, 22876, 23788, 26292, 26918, 34314, 35682, 40377, 41629, 53836, 68628, 71364, 80754, 83258, 94213, 124887, 161508, 166516, 188426, 249774, 255721, 282639, 376852, 499548, 511442, 565278, 767163, 1022884, 1130556, 1534326, 1790047, 3068652, 3580094, 5370141, 7160188, 10740282, 21480564]

約数ペア:

[(1, 21480564), (2, 10740282), (3, 7160188), (4, 5370141), (6, 3580094), (7, 3068652), (12, 1790047), (14, 1534326), (19, 1130556), (21, 1022884), (28, 767163), (38, 565278), (42, 511442), (43, 499548), (57, 376852), (76, 282639), (84, 255721), (86, 249774), (114, 188426), (129, 166516), (133, 161508), (172, 124887), (228, 94213), (258, 83258), (266, 80754), (301, 71364), (313, 68628), (399, 53836), (516, 41629), (532, 40377), (602, 35682), (626, 34314), (798, 26918), (817, 26292), (903, 23788), (939, 22876), (1204, 17841), (1252, 17157), (1596, 13459), (1634, 13146), (1806, 11894), (1878, 11438), (2191, 9804), (2451, 8764), (3268, 6573), (3612, 5947), (3756, 5719), (4382, 4902)]