21180496672

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{266999}}^1$

素因数の和:267113

約数の個数: 48

約数和(自身を含む): 43465464000

約数和(自身を除く): 22284967328

約数列:

[1, 2, 4, 8, 16, 32, 37, 67, 74, 134, 148, 268, 296, 536, 592, 1072, 1184, 2144, 2479, 4958, 9916, 19832, 39664, 79328, 266999, 533998, 1067996, 2135992, 4271984, 8543968, 9878963, 17888933, 19757926, 35777866, 39515852, 71555732, 79031704, 143111464, 158063408, 286222928, 316126816, 572445856, 661890521, 1323781042, 2647562084, 5295124168, 10590248336, 21180496672]

約数ペア:

[(1, 21180496672), (2, 10590248336), (4, 5295124168), (8, 2647562084), (16, 1323781042), (32, 661890521), (37, 572445856), (67, 316126816), (74, 286222928), (134, 158063408), (148, 143111464), (268, 79031704), (296, 71555732), (536, 39515852), (592, 35777866), (1072, 19757926), (1184, 17888933), (2144, 9878963), (2479, 8543968), (4958, 4271984), (9916, 2135992), (19832, 1067996), (39664, 533998), (79328, 266999)]