21397488

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1481}}^1$

素因数の和:1542

約数の個数: 80

約数和(自身を含む): 64686336

約数和(自身を除く): 43288848

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 43, 48, 56, 84, 86, 112, 129, 168, 172, 258, 301, 336, 344, 516, 602, 688, 903, 1032, 1204, 1481, 1806, 2064, 2408, 2962, 3612, 4443, 4816, 5924, 7224, 8886, 10367, 11848, 14448, 17772, 20734, 23696, 31101, 35544, 41468, 62202, 63683, 71088, 82936, 124404, 127366, 165872, 191049, 248808, 254732, 382098, 445781, 497616, 509464, 764196, 891562, 1018928, 1337343, 1528392, 1783124, 2674686, 3056784, 3566248, 5349372, 7132496, 10698744, 21397488]

約数ペア:

[(1, 21397488), (2, 10698744), (3, 7132496), (4, 5349372), (6, 3566248), (7, 3056784), (8, 2674686), (12, 1783124), (14, 1528392), (16, 1337343), (21, 1018928), (24, 891562), (28, 764196), (42, 509464), (43, 497616), (48, 445781), (56, 382098), (84, 254732), (86, 248808), (112, 191049), (129, 165872), (168, 127366), (172, 124404), (258, 82936), (301, 71088), (336, 63683), (344, 62202), (516, 41468), (602, 35544), (688, 31101), (903, 23696), (1032, 20734), (1204, 17772), (1481, 14448), (1806, 11848), (2064, 10367), (2408, 8886), (2962, 7224), (3612, 5924), (4443, 4816)]