21262864

素因数分解:

$2^4\times 7^2\times {\mathrm{37}}^1\times {\mathrm{733}}^1$

素因数の和:792

約数の個数: 60

約数和(自身を含む): 49285164

約数和(自身を除く): 28022300

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 49, 56, 74, 98, 112, 148, 196, 259, 296, 392, 518, 592, 733, 784, 1036, 1466, 1813, 2072, 2932, 3626, 4144, 5131, 5864, 7252, 10262, 11728, 14504, 20524, 27121, 29008, 35917, 41048, 54242, 71834, 82096, 108484, 143668, 189847, 216968, 287336, 379694, 433936, 574672, 759388, 1328929, 1518776, 2657858, 3037552, 5315716, 10631432, 21262864]

約数ペア:

[(1, 21262864), (2, 10631432), (4, 5315716), (7, 3037552), (8, 2657858), (14, 1518776), (16, 1328929), (28, 759388), (37, 574672), (49, 433936), (56, 379694), (74, 287336), (98, 216968), (112, 189847), (148, 143668), (196, 108484), (259, 82096), (296, 71834), (392, 54242), (518, 41048), (592, 35917), (733, 29008), (784, 27121), (1036, 20524), (1466, 14504), (1813, 11728), (2072, 10262), (2932, 7252), (3626, 5864), (4144, 5131)]