21981984

素因数分解:

$2^5\times 3^1\times {\mathrm{59}}^1\times {\mathrm{3881}}^1$

素因数の和:3953

約数の個数: 48

約数和(自身を含む): 58695840

約数和(自身を除く): 36713856

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 59, 96, 118, 177, 236, 354, 472, 708, 944, 1416, 1888, 2832, 3881, 5664, 7762, 11643, 15524, 23286, 31048, 46572, 62096, 93144, 124192, 186288, 228979, 372576, 457958, 686937, 915916, 1373874, 1831832, 2747748, 3663664, 5495496, 7327328, 10990992, 21981984]

約数ペア:

[(1, 21981984), (2, 10990992), (3, 7327328), (4, 5495496), (6, 3663664), (8, 2747748), (12, 1831832), (16, 1373874), (24, 915916), (32, 686937), (48, 457958), (59, 372576), (96, 228979), (118, 186288), (177, 124192), (236, 93144), (354, 62096), (472, 46572), (708, 31048), (944, 23286), (1416, 15524), (1888, 11643), (2832, 7762), (3881, 5664)]