20514956

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1549}}^1$

素因数の和:1614

約数の個数: 48

約数和(自身を含む): 45830400

約数和(自身を除く): 25315444

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 43, 44, 77, 86, 154, 172, 301, 308, 473, 602, 946, 1204, 1549, 1892, 3098, 3311, 6196, 6622, 10843, 13244, 17039, 21686, 34078, 43372, 66607, 68156, 119273, 133214, 238546, 266428, 466249, 477092, 732677, 932498, 1465354, 1864996, 2930708, 5128739, 10257478, 20514956]

約数ペア:

[(1, 20514956), (2, 10257478), (4, 5128739), (7, 2930708), (11, 1864996), (14, 1465354), (22, 932498), (28, 732677), (43, 477092), (44, 466249), (77, 266428), (86, 238546), (154, 133214), (172, 119273), (301, 68156), (308, 66607), (473, 43372), (602, 34078), (946, 21686), (1204, 17039), (1549, 13244), (1892, 10843), (3098, 6622), (3311, 6196)]