20914684

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{599}}^1$

素因数の和:682

約数の個数: 48

約数和(自身を含む): 44352000

約数和(自身を除く): 23437316

約数列:

[1, 2, 4, 7, 14, 28, 29, 43, 58, 86, 116, 172, 203, 301, 406, 599, 602, 812, 1198, 1204, 1247, 2396, 2494, 4193, 4988, 8386, 8729, 16772, 17371, 17458, 25757, 34742, 34916, 51514, 69484, 103028, 121597, 180299, 243194, 360598, 486388, 721196, 746953, 1493906, 2987812, 5228671, 10457342, 20914684]

約数ペア:

[(1, 20914684), (2, 10457342), (4, 5228671), (7, 2987812), (14, 1493906), (28, 746953), (29, 721196), (43, 486388), (58, 360598), (86, 243194), (116, 180299), (172, 121597), (203, 103028), (301, 69484), (406, 51514), (599, 34916), (602, 34742), (812, 25757), (1198, 17458), (1204, 17371), (1247, 16772), (2396, 8729), (2494, 8386), (4193, 4988)]