21611968

素因数分解:

$2^6\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2539}}^1$

素因数の和:2577

約数の個数: 56

約数和(自身を含む): 51612800

約数和(自身を除く): 30000832

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 64, 76, 112, 133, 152, 224, 266, 304, 448, 532, 608, 1064, 1216, 2128, 2539, 4256, 5078, 8512, 10156, 17773, 20312, 35546, 40624, 48241, 71092, 81248, 96482, 142184, 162496, 192964, 284368, 337687, 385928, 568736, 675374, 771856, 1137472, 1350748, 1543712, 2701496, 3087424, 5402992, 10805984, 21611968]

約数ペア:

[(1, 21611968), (2, 10805984), (4, 5402992), (7, 3087424), (8, 2701496), (14, 1543712), (16, 1350748), (19, 1137472), (28, 771856), (32, 675374), (38, 568736), (56, 385928), (64, 337687), (76, 284368), (112, 192964), (133, 162496), (152, 142184), (224, 96482), (266, 81248), (304, 71092), (448, 48241), (532, 40624), (608, 35546), (1064, 20312), (1216, 17773), (2128, 10156), (2539, 8512), (4256, 5078)]