21878784

素因数分解:

$2^{11}\times 3^2\times {\mathrm{1187}}^1$

素因数の和:1215

約数の個数: 72

約数和(自身を含む): 63243180

約数和(自身を除く): 41364396

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, 1152, 1187, 1536, 2048, 2304, 2374, 3072, 3561, 4608, 4748, 6144, 7122, 9216, 9496, 10683, 14244, 18432, 18992, 21366, 28488, 37984, 42732, 56976, 75968, 85464, 113952, 151936, 170928, 227904, 303872, 341856, 455808, 607744, 683712, 911616, 1215488, 1367424, 1823232, 2430976, 2734848, 3646464, 5469696, 7292928, 10939392, 21878784]

約数ペア:

[(1, 21878784), (2, 10939392), (3, 7292928), (4, 5469696), (6, 3646464), (8, 2734848), (9, 2430976), (12, 1823232), (16, 1367424), (18, 1215488), (24, 911616), (32, 683712), (36, 607744), (48, 455808), (64, 341856), (72, 303872), (96, 227904), (128, 170928), (144, 151936), (192, 113952), (256, 85464), (288, 75968), (384, 56976), (512, 42732), (576, 37984), (768, 28488), (1024, 21366), (1152, 18992), (1187, 18432), (1536, 14244), (2048, 10683), (2304, 9496), (2374, 9216), (3072, 7122), (3561, 6144), (4608, 4748)]