21072912

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1063}}^1$

素因数の和:1140

約数の個数: 80

約数和(自身を含む): 63329280

約数和(自身を除く): 42256368

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 59, 84, 112, 118, 168, 177, 236, 336, 354, 413, 472, 708, 826, 944, 1063, 1239, 1416, 1652, 2126, 2478, 2832, 3189, 3304, 4252, 4956, 6378, 6608, 7441, 8504, 9912, 12756, 14882, 17008, 19824, 22323, 25512, 29764, 44646, 51024, 59528, 62717, 89292, 119056, 125434, 178584, 188151, 250868, 357168, 376302, 439019, 501736, 752604, 878038, 1003472, 1317057, 1505208, 1756076, 2634114, 3010416, 3512152, 5268228, 7024304, 10536456, 21072912]

約数ペア:

[(1, 21072912), (2, 10536456), (3, 7024304), (4, 5268228), (6, 3512152), (7, 3010416), (8, 2634114), (12, 1756076), (14, 1505208), (16, 1317057), (21, 1003472), (24, 878038), (28, 752604), (42, 501736), (48, 439019), (56, 376302), (59, 357168), (84, 250868), (112, 188151), (118, 178584), (168, 125434), (177, 119056), (236, 89292), (336, 62717), (354, 59528), (413, 51024), (472, 44646), (708, 29764), (826, 25512), (944, 22323), (1063, 19824), (1239, 17008), (1416, 14882), (1652, 12756), (2126, 9912), (2478, 8504), (2832, 7441), (3189, 6608), (3304, 6378), (4252, 4956)]