20887944

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:243

約数の個数: 128

約数和(自身を含む): 66355200

約数和(自身を除く): 45467256

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 33, 42, 44, 56, 66, 77, 84, 88, 89, 127, 132, 154, 168, 178, 231, 254, 264, 267, 308, 356, 381, 462, 508, 534, 616, 623, 712, 762, 889, 924, 979, 1016, 1068, 1246, 1397, 1524, 1778, 1848, 1869, 1958, 2136, 2492, 2667, 2794, 2937, 3048, 3556, 3738, 3916, 4191, 4984, 5334, 5588, 5874, 6853, 7112, 7476, 7832, 8382, 9779, 10668, 11176, 11303, 11748, 13706, 14952, 16764, 19558, 20559, 21336, 22606, 23496, 27412, 29337, 33528, 33909, 39116, 41118, 45212, 54824, 58674, 67818, 78232, 79121, 82236, 90424, 117348, 124333, 135636, 158242, 164472, 234696, 237363, 248666, 271272, 316484, 372999, 474726, 497332, 632968, 745998, 870331, 949452, 994664, 1491996, 1740662, 1898904, 2610993, 2983992, 3481324, 5221986, 6962648, 10443972, 20887944]

約数ペア:

[(1, 20887944), (2, 10443972), (3, 6962648), (4, 5221986), (6, 3481324), (7, 2983992), (8, 2610993), (11, 1898904), (12, 1740662), (14, 1491996), (21, 994664), (22, 949452), (24, 870331), (28, 745998), (33, 632968), (42, 497332), (44, 474726), (56, 372999), (66, 316484), (77, 271272), (84, 248666), (88, 237363), (89, 234696), (127, 164472), (132, 158242), (154, 135636), (168, 124333), (178, 117348), (231, 90424), (254, 82236), (264, 79121), (267, 78232), (308, 67818), (356, 58674), (381, 54824), (462, 45212), (508, 41118), (534, 39116), (616, 33909), (623, 33528), (712, 29337), (762, 27412), (889, 23496), (924, 22606), (979, 21336), (1016, 20559), (1068, 19558), (1246, 16764), (1397, 14952), (1524, 13706), (1778, 11748), (1848, 11303), (1869, 11176), (1958, 10668), (2136, 9779), (2492, 8382), (2667, 7832), (2794, 7476), (2937, 7112), (3048, 6853), (3556, 5874), (3738, 5588), (3916, 5334), (4191, 4984)]