21872256

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:206

約数の個数: 128

約数和(自身を含む): 67891200

約数和(自身を除く): 46018944

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 79, 84, 96, 103, 112, 128, 158, 168, 192, 206, 224, 237, 309, 316, 336, 384, 412, 448, 474, 553, 618, 632, 672, 721, 824, 896, 948, 1106, 1236, 1264, 1344, 1442, 1648, 1659, 1896, 2163, 2212, 2472, 2528, 2688, 2884, 3296, 3318, 3792, 4326, 4424, 4944, 5056, 5768, 6592, 6636, 7584, 8137, 8652, 8848, 9888, 10112, 11536, 13184, 13272, 15168, 16274, 17304, 17696, 19776, 23072, 24411, 26544, 30336, 32548, 34608, 35392, 39552, 46144, 48822, 53088, 56959, 65096, 69216, 70784, 92288, 97644, 106176, 113918, 130192, 138432, 170877, 195288, 212352, 227836, 260384, 276864, 341754, 390576, 455672, 520768, 683508, 781152, 911344, 1041536, 1367016, 1562304, 1822688, 2734032, 3124608, 3645376, 5468064, 7290752, 10936128, 21872256]

約数ペア:

[(1, 21872256), (2, 10936128), (3, 7290752), (4, 5468064), (6, 3645376), (7, 3124608), (8, 2734032), (12, 1822688), (14, 1562304), (16, 1367016), (21, 1041536), (24, 911344), (28, 781152), (32, 683508), (42, 520768), (48, 455672), (56, 390576), (64, 341754), (79, 276864), (84, 260384), (96, 227836), (103, 212352), (112, 195288), (128, 170877), (158, 138432), (168, 130192), (192, 113918), (206, 106176), (224, 97644), (237, 92288), (309, 70784), (316, 69216), (336, 65096), (384, 56959), (412, 53088), (448, 48822), (474, 46144), (553, 39552), (618, 35392), (632, 34608), (672, 32548), (721, 30336), (824, 26544), (896, 24411), (948, 23072), (1106, 19776), (1236, 17696), (1264, 17304), (1344, 16274), (1442, 15168), (1648, 13272), (1659, 13184), (1896, 11536), (2163, 10112), (2212, 9888), (2472, 8848), (2528, 8652), (2688, 8137), (2884, 7584), (3296, 6636), (3318, 6592), (3792, 5768), (4326, 5056), (4424, 4944)]