21492856

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:125

約数の個数: 128

約数和(自身を含む): 55157760

約数和(自身を除く): 33664904

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 23, 28, 37, 41, 44, 46, 56, 74, 77, 82, 88, 92, 148, 154, 161, 164, 184, 253, 259, 287, 296, 308, 322, 328, 407, 451, 506, 518, 574, 616, 644, 814, 851, 902, 943, 1012, 1036, 1148, 1288, 1517, 1628, 1702, 1771, 1804, 1886, 2024, 2072, 2296, 2849, 3034, 3157, 3256, 3404, 3542, 3608, 3772, 5698, 5957, 6068, 6314, 6601, 6808, 7084, 7544, 9361, 10373, 10619, 11396, 11914, 12136, 12628, 13202, 14168, 16687, 18722, 20746, 21238, 22792, 23828, 25256, 26404, 33374, 34891, 37444, 41492, 42476, 47656, 52808, 65527, 66748, 69782, 72611, 74888, 82984, 84952, 116809, 131054, 133496, 139564, 145222, 233618, 244237, 262108, 279128, 290444, 383801, 467236, 488474, 524216, 580888, 767602, 934472, 976948, 1535204, 1953896, 2686607, 3070408, 5373214, 10746428, 21492856]

約数ペア:

[(1, 21492856), (2, 10746428), (4, 5373214), (7, 3070408), (8, 2686607), (11, 1953896), (14, 1535204), (22, 976948), (23, 934472), (28, 767602), (37, 580888), (41, 524216), (44, 488474), (46, 467236), (56, 383801), (74, 290444), (77, 279128), (82, 262108), (88, 244237), (92, 233618), (148, 145222), (154, 139564), (161, 133496), (164, 131054), (184, 116809), (253, 84952), (259, 82984), (287, 74888), (296, 72611), (308, 69782), (322, 66748), (328, 65527), (407, 52808), (451, 47656), (506, 42476), (518, 41492), (574, 37444), (616, 34891), (644, 33374), (814, 26404), (851, 25256), (902, 23828), (943, 22792), (1012, 21238), (1036, 20746), (1148, 18722), (1288, 16687), (1517, 14168), (1628, 13202), (1702, 12628), (1771, 12136), (1804, 11914), (1886, 11396), (2024, 10619), (2072, 10373), (2296, 9361), (2849, 7544), (3034, 7084), (3157, 6808), (3256, 6601), (3404, 6314), (3542, 6068), (3608, 5957), (3772, 5698)]