19854212

素因数分解:

$2^2\times 7^3\times {\mathrm{29}}^1\times {\mathrm{499}}^1$

素因数の和:553

約数の個数: 48

約数和(自身を含む): 42000000

約数和(自身を除く): 22145788

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 98, 116, 196, 203, 343, 406, 499, 686, 812, 998, 1372, 1421, 1996, 2842, 3493, 5684, 6986, 9947, 13972, 14471, 19894, 24451, 28942, 39788, 48902, 57884, 97804, 101297, 171157, 202594, 342314, 405188, 684628, 709079, 1418158, 2836316, 4963553, 9927106, 19854212]

約数ペア:

[(1, 19854212), (2, 9927106), (4, 4963553), (7, 2836316), (14, 1418158), (28, 709079), (29, 684628), (49, 405188), (58, 342314), (98, 202594), (116, 171157), (196, 101297), (203, 97804), (343, 57884), (406, 48902), (499, 39788), (686, 28942), (812, 24451), (998, 19894), (1372, 14471), (1421, 13972), (1996, 9947), (2842, 6986), (3493, 5684)]