21507851008

素因数分解:

$2^8\times 7^1\times {\mathrm{73}}^1\times {\mathrm{164413}}^1$

素因数の和:164509

約数の個数: 72

約数和(自身を含む): 49737207968

約数和(自身を除く): 28229356960

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 73, 112, 128, 146, 224, 256, 292, 448, 511, 584, 896, 1022, 1168, 1792, 2044, 2336, 4088, 4672, 8176, 9344, 16352, 18688, 32704, 65408, 130816, 164413, 328826, 657652, 1150891, 1315304, 2301782, 2630608, 4603564, 5261216, 9207128, 10522432, 12002149, 18414256, 21044864, 24004298, 36828512, 42089728, 48008596, 73657024, 84015043, 96017192, 147314048, 168030086, 192034384, 294628096, 336060172, 384068768, 672120344, 768137536, 1344240688, 1536275072, 2688481376, 3072550144, 5376962752, 10753925504, 21507851008]

約数ペア:

[(1, 21507851008), (2, 10753925504), (4, 5376962752), (7, 3072550144), (8, 2688481376), (14, 1536275072), (16, 1344240688), (28, 768137536), (32, 672120344), (56, 384068768), (64, 336060172), (73, 294628096), (112, 192034384), (128, 168030086), (146, 147314048), (224, 96017192), (256, 84015043), (292, 73657024), (448, 48008596), (511, 42089728), (584, 36828512), (896, 24004298), (1022, 21044864), (1168, 18414256), (1792, 12002149), (2044, 10522432), (2336, 9207128), (4088, 5261216), (4672, 4603564), (8176, 2630608), (9344, 2301782), (16352, 1315304), (18688, 1150891), (32704, 657652), (65408, 328826), (130816, 164413)]