20853504

素因数分解:

$2^8\times 3^3\times 7^1\times {\mathrm{431}}^1$

素因数の和:463

約数の個数: 144

約数和(自身を含む): 70640640

約数和(自身を除く): 49787136

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 64, 72, 84, 96, 108, 112, 126, 128, 144, 168, 189, 192, 216, 224, 252, 256, 288, 336, 378, 384, 431, 432, 448, 504, 576, 672, 756, 768, 862, 864, 896, 1008, 1152, 1293, 1344, 1512, 1724, 1728, 1792, 2016, 2304, 2586, 2688, 3017, 3024, 3448, 3456, 3879, 4032, 5172, 5376, 6034, 6048, 6896, 6912, 7758, 8064, 9051, 10344, 11637, 12068, 12096, 13792, 15516, 16128, 18102, 20688, 23274, 24136, 24192, 27153, 27584, 31032, 36204, 41376, 46548, 48272, 48384, 54306, 55168, 62064, 72408, 81459, 82752, 93096, 96544, 108612, 110336, 124128, 144816, 162918, 165504, 186192, 193088, 217224, 248256, 289632, 325836, 331008, 372384, 386176, 434448, 496512, 579264, 651672, 744768, 772352, 868896, 993024, 1158528, 1303344, 1489536, 1737792, 2317056, 2606688, 2979072, 3475584, 5213376, 6951168, 10426752, 20853504]

約数ペア:

[(1, 20853504), (2, 10426752), (3, 6951168), (4, 5213376), (6, 3475584), (7, 2979072), (8, 2606688), (9, 2317056), (12, 1737792), (14, 1489536), (16, 1303344), (18, 1158528), (21, 993024), (24, 868896), (27, 772352), (28, 744768), (32, 651672), (36, 579264), (42, 496512), (48, 434448), (54, 386176), (56, 372384), (63, 331008), (64, 325836), (72, 289632), (84, 248256), (96, 217224), (108, 193088), (112, 186192), (126, 165504), (128, 162918), (144, 144816), (168, 124128), (189, 110336), (192, 108612), (216, 96544), (224, 93096), (252, 82752), (256, 81459), (288, 72408), (336, 62064), (378, 55168), (384, 54306), (431, 48384), (432, 48272), (448, 46548), (504, 41376), (576, 36204), (672, 31032), (756, 27584), (768, 27153), (862, 24192), (864, 24136), (896, 23274), (1008, 20688), (1152, 18102), (1293, 16128), (1344, 15516), (1512, 13792), (1724, 12096), (1728, 12068), (1792, 11637), (2016, 10344), (2304, 9051), (2586, 8064), (2688, 7758), (3017, 6912), (3024, 6896), (3448, 6048), (3456, 6034), (3879, 5376), (4032, 5172)]