21271616

素因数分解:

$2^6\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:271

約数の個数: 56

約数和(自身を含む): 44546520

約数和(自身を除く): 23274904

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 73, 116, 146, 157, 232, 292, 314, 464, 584, 628, 928, 1168, 1256, 1856, 2117, 2336, 2512, 4234, 4553, 4672, 5024, 8468, 9106, 10048, 11461, 16936, 18212, 22922, 33872, 36424, 45844, 67744, 72848, 91688, 135488, 145696, 183376, 291392, 332369, 366752, 664738, 733504, 1329476, 2658952, 5317904, 10635808, 21271616]

約数ペア:

[(1, 21271616), (2, 10635808), (4, 5317904), (8, 2658952), (16, 1329476), (29, 733504), (32, 664738), (58, 366752), (64, 332369), (73, 291392), (116, 183376), (146, 145696), (157, 135488), (232, 91688), (292, 72848), (314, 67744), (464, 45844), (584, 36424), (628, 33872), (928, 22922), (1168, 18212), (1256, 16936), (1856, 11461), (2117, 10048), (2336, 9106), (2512, 8468), (4234, 5024), (4553, 4672)]