20784708

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1447}}^1$

素因数の和:1486

約数の個数: 96

約数和(自身を含む): 64870400

約数和(自身を除く): 44085692

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 27, 28, 36, 38, 42, 54, 57, 63, 76, 84, 108, 114, 126, 133, 171, 189, 228, 252, 266, 342, 378, 399, 513, 532, 684, 756, 798, 1026, 1197, 1447, 1596, 2052, 2394, 2894, 3591, 4341, 4788, 5788, 7182, 8682, 10129, 13023, 14364, 17364, 20258, 26046, 27493, 30387, 39069, 40516, 52092, 54986, 60774, 78138, 82479, 91161, 109972, 121548, 156276, 164958, 182322, 192451, 247437, 273483, 329916, 364644, 384902, 494874, 546966, 577353, 742311, 769804, 989748, 1093932, 1154706, 1484622, 1732059, 2309412, 2969244, 3464118, 5196177, 6928236, 10392354, 20784708]

約数ペア:

[(1, 20784708), (2, 10392354), (3, 6928236), (4, 5196177), (6, 3464118), (7, 2969244), (9, 2309412), (12, 1732059), (14, 1484622), (18, 1154706), (19, 1093932), (21, 989748), (27, 769804), (28, 742311), (36, 577353), (38, 546966), (42, 494874), (54, 384902), (57, 364644), (63, 329916), (76, 273483), (84, 247437), (108, 192451), (114, 182322), (126, 164958), (133, 156276), (171, 121548), (189, 109972), (228, 91161), (252, 82479), (266, 78138), (342, 60774), (378, 54986), (399, 52092), (513, 40516), (532, 39069), (684, 30387), (756, 27493), (798, 26046), (1026, 20258), (1197, 17364), (1447, 14364), (1596, 13023), (2052, 10129), (2394, 8682), (2894, 7182), (3591, 5788), (4341, 4788)]