21383556

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1429}}^1$

素因数の和:1508

約数の個数: 48

約数和(自身を含む): 52852800

約数和(自身を除く): 31469244

約数列:

[1, 2, 3, 4, 6, 12, 29, 43, 58, 86, 87, 116, 129, 172, 174, 258, 348, 516, 1247, 1429, 2494, 2858, 3741, 4287, 4988, 5716, 7482, 8574, 14964, 17148, 41441, 61447, 82882, 122894, 124323, 165764, 184341, 245788, 248646, 368682, 497292, 737364, 1781963, 3563926, 5345889, 7127852, 10691778, 21383556]

約数ペア:

[(1, 21383556), (2, 10691778), (3, 7127852), (4, 5345889), (6, 3563926), (12, 1781963), (29, 737364), (43, 497292), (58, 368682), (86, 248646), (87, 245788), (116, 184341), (129, 165764), (172, 124323), (174, 122894), (258, 82882), (348, 61447), (516, 41441), (1247, 17148), (1429, 14964), (2494, 8574), (2858, 7482), (3741, 5716), (4287, 4988)]