21215232

素因数分解:

$2^{11}\times 3^2\times {\mathrm{1151}}^1$

素因数の和:1179

約数の個数: 72

約数和(自身を含む): 61326720

約数和(自身を除く): 40111488

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 128, 144, 192, 256, 288, 384, 512, 576, 768, 1024, 1151, 1152, 1536, 2048, 2302, 2304, 3072, 3453, 4604, 4608, 6144, 6906, 9208, 9216, 10359, 13812, 18416, 18432, 20718, 27624, 36832, 41436, 55248, 73664, 82872, 110496, 147328, 165744, 220992, 294656, 331488, 441984, 589312, 662976, 883968, 1178624, 1325952, 1767936, 2357248, 2651904, 3535872, 5303808, 7071744, 10607616, 21215232]

約数ペア:

[(1, 21215232), (2, 10607616), (3, 7071744), (4, 5303808), (6, 3535872), (8, 2651904), (9, 2357248), (12, 1767936), (16, 1325952), (18, 1178624), (24, 883968), (32, 662976), (36, 589312), (48, 441984), (64, 331488), (72, 294656), (96, 220992), (128, 165744), (144, 147328), (192, 110496), (256, 82872), (288, 73664), (384, 55248), (512, 41436), (576, 36832), (768, 27624), (1024, 20718), (1151, 18432), (1152, 18416), (1536, 13812), (2048, 10359), (2302, 9216), (2304, 9208), (3072, 6906), (3453, 6144), (4604, 4608)]