20718768

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{383}}^1$

素因数の和:431

約数の個数: 120

約数和(自身を含む): 65138688

約数和(自身を除く): 44419920

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 23, 24, 28, 42, 46, 48, 49, 56, 69, 84, 92, 98, 112, 138, 147, 161, 168, 184, 196, 276, 294, 322, 336, 368, 383, 392, 483, 552, 588, 644, 766, 784, 966, 1104, 1127, 1149, 1176, 1288, 1532, 1932, 2254, 2298, 2352, 2576, 2681, 3064, 3381, 3864, 4508, 4596, 5362, 6128, 6762, 7728, 8043, 8809, 9016, 9192, 10724, 13524, 16086, 17618, 18032, 18384, 18767, 21448, 26427, 27048, 32172, 35236, 37534, 42896, 52854, 54096, 56301, 61663, 64344, 70472, 75068, 105708, 112602, 123326, 128688, 140944, 150136, 184989, 211416, 225204, 246652, 300272, 369978, 422832, 431641, 450408, 493304, 739956, 863282, 900816, 986608, 1294923, 1479912, 1726564, 2589846, 2959824, 3453128, 5179692, 6906256, 10359384, 20718768]

約数ペア:

[(1, 20718768), (2, 10359384), (3, 6906256), (4, 5179692), (6, 3453128), (7, 2959824), (8, 2589846), (12, 1726564), (14, 1479912), (16, 1294923), (21, 986608), (23, 900816), (24, 863282), (28, 739956), (42, 493304), (46, 450408), (48, 431641), (49, 422832), (56, 369978), (69, 300272), (84, 246652), (92, 225204), (98, 211416), (112, 184989), (138, 150136), (147, 140944), (161, 128688), (168, 123326), (184, 112602), (196, 105708), (276, 75068), (294, 70472), (322, 64344), (336, 61663), (368, 56301), (383, 54096), (392, 52854), (483, 42896), (552, 37534), (588, 35236), (644, 32172), (766, 27048), (784, 26427), (966, 21448), (1104, 18767), (1127, 18384), (1149, 18032), (1176, 17618), (1288, 16086), (1532, 13524), (1932, 10724), (2254, 9192), (2298, 9016), (2352, 8809), (2576, 8043), (2681, 7728), (3064, 6762), (3381, 6128), (3864, 5362), (4508, 4596)]