21191808

素因数分解:

$2^7\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1$

素因数の和:230

約数の個数: 128

約数和(自身を含む): 63892800

約数和(自身を除く): 42700992

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 29, 32, 33, 44, 48, 58, 64, 66, 87, 88, 96, 116, 128, 132, 173, 174, 176, 192, 232, 264, 319, 346, 348, 352, 384, 464, 519, 528, 638, 692, 696, 704, 928, 957, 1038, 1056, 1276, 1384, 1392, 1408, 1856, 1903, 1914, 2076, 2112, 2552, 2768, 2784, 3712, 3806, 3828, 4152, 4224, 5017, 5104, 5536, 5568, 5709, 7612, 7656, 8304, 10034, 10208, 11072, 11136, 11418, 15051, 15224, 15312, 16608, 20068, 20416, 22144, 22836, 30102, 30448, 30624, 33216, 40136, 40832, 45672, 55187, 60204, 60896, 61248, 66432, 80272, 91344, 110374, 120408, 121792, 122496, 160544, 165561, 182688, 220748, 240816, 243584, 321088, 331122, 365376, 441496, 481632, 642176, 662244, 730752, 882992, 963264, 1324488, 1765984, 1926528, 2648976, 3531968, 5297952, 7063936, 10595904, 21191808]

約数ペア:

[(1, 21191808), (2, 10595904), (3, 7063936), (4, 5297952), (6, 3531968), (8, 2648976), (11, 1926528), (12, 1765984), (16, 1324488), (22, 963264), (24, 882992), (29, 730752), (32, 662244), (33, 642176), (44, 481632), (48, 441496), (58, 365376), (64, 331122), (66, 321088), (87, 243584), (88, 240816), (96, 220748), (116, 182688), (128, 165561), (132, 160544), (173, 122496), (174, 121792), (176, 120408), (192, 110374), (232, 91344), (264, 80272), (319, 66432), (346, 61248), (348, 60896), (352, 60204), (384, 55187), (464, 45672), (519, 40832), (528, 40136), (638, 33216), (692, 30624), (696, 30448), (704, 30102), (928, 22836), (957, 22144), (1038, 20416), (1056, 20068), (1276, 16608), (1384, 15312), (1392, 15224), (1408, 15051), (1856, 11418), (1903, 11136), (1914, 11072), (2076, 10208), (2112, 10034), (2552, 8304), (2768, 7656), (2784, 7612), (3712, 5709), (3806, 5568), (3828, 5536), (4152, 5104), (4224, 5017)]