20971776

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:156

約数の個数: 144

約数和(自身を含む): 65931264

約数和(自身を除く): 44959488

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 47, 48, 56, 64, 83, 84, 94, 96, 112, 128, 141, 166, 168, 188, 192, 224, 249, 256, 282, 329, 332, 336, 376, 384, 448, 498, 564, 581, 658, 664, 672, 752, 768, 896, 987, 996, 1128, 1162, 1316, 1328, 1344, 1504, 1743, 1792, 1974, 1992, 2256, 2324, 2632, 2656, 2688, 3008, 3486, 3901, 3948, 3984, 4512, 4648, 5264, 5312, 5376, 6016, 6972, 7802, 7896, 7968, 9024, 9296, 10528, 10624, 11703, 12032, 13944, 15604, 15792, 15936, 18048, 18592, 21056, 21248, 23406, 27307, 27888, 31208, 31584, 31872, 36096, 37184, 42112, 46812, 54614, 55776, 62416, 63168, 63744, 74368, 81921, 84224, 93624, 109228, 111552, 124832, 126336, 148736, 163842, 187248, 218456, 223104, 249664, 252672, 327684, 374496, 436912, 446208, 499328, 655368, 748992, 873824, 998656, 1310736, 1497984, 1747648, 2621472, 2995968, 3495296, 5242944, 6990592, 10485888, 20971776]

約数ペア:

[(1, 20971776), (2, 10485888), (3, 6990592), (4, 5242944), (6, 3495296), (7, 2995968), (8, 2621472), (12, 1747648), (14, 1497984), (16, 1310736), (21, 998656), (24, 873824), (28, 748992), (32, 655368), (42, 499328), (47, 446208), (48, 436912), (56, 374496), (64, 327684), (83, 252672), (84, 249664), (94, 223104), (96, 218456), (112, 187248), (128, 163842), (141, 148736), (166, 126336), (168, 124832), (188, 111552), (192, 109228), (224, 93624), (249, 84224), (256, 81921), (282, 74368), (329, 63744), (332, 63168), (336, 62416), (376, 55776), (384, 54614), (448, 46812), (498, 42112), (564, 37184), (581, 36096), (658, 31872), (664, 31584), (672, 31208), (752, 27888), (768, 27307), (896, 23406), (987, 21248), (996, 21056), (1128, 18592), (1162, 18048), (1316, 15936), (1328, 15792), (1344, 15604), (1504, 13944), (1743, 12032), (1792, 11703), (1974, 10624), (1992, 10528), (2256, 9296), (2324, 9024), (2632, 7968), (2656, 7896), (2688, 7802), (3008, 6972), (3486, 6016), (3901, 5376), (3948, 5312), (3984, 5264), (4512, 4648)]