21689856

素因数分解:

$2^9\times 3^4\times {\mathrm{523}}^1$

素因数の和:553

約数の個数: 100

約数和(自身を含む): 64862292

約数和(自身を除く): 43172436

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 81, 96, 108, 128, 144, 162, 192, 216, 256, 288, 324, 384, 432, 512, 523, 576, 648, 768, 864, 1046, 1152, 1296, 1536, 1569, 1728, 2092, 2304, 2592, 3138, 3456, 4184, 4608, 4707, 5184, 6276, 6912, 8368, 9414, 10368, 12552, 13824, 14121, 16736, 18828, 20736, 25104, 28242, 33472, 37656, 41472, 42363, 50208, 56484, 66944, 75312, 84726, 100416, 112968, 133888, 150624, 169452, 200832, 225936, 267776, 301248, 338904, 401664, 451872, 602496, 677808, 803328, 903744, 1204992, 1355616, 1807488, 2409984, 2711232, 3614976, 5422464, 7229952, 10844928, 21689856]

約数ペア:

[(1, 21689856), (2, 10844928), (3, 7229952), (4, 5422464), (6, 3614976), (8, 2711232), (9, 2409984), (12, 1807488), (16, 1355616), (18, 1204992), (24, 903744), (27, 803328), (32, 677808), (36, 602496), (48, 451872), (54, 401664), (64, 338904), (72, 301248), (81, 267776), (96, 225936), (108, 200832), (128, 169452), (144, 150624), (162, 133888), (192, 112968), (216, 100416), (256, 84726), (288, 75312), (324, 66944), (384, 56484), (432, 50208), (512, 42363), (523, 41472), (576, 37656), (648, 33472), (768, 28242), (864, 25104), (1046, 20736), (1152, 18828), (1296, 16736), (1536, 14121), (1569, 13824), (1728, 12552), (2092, 10368), (2304, 9414), (2592, 8368), (3138, 6912), (3456, 6276), (4184, 5184), (4608, 4707)]