21453824

素因数分解:

$2^{10}\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:141

約数の個数: 88

約数和(自身を含む): 50896608

約数和(自身を除く): 29442784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 56, 64, 73, 82, 112, 128, 146, 164, 224, 256, 287, 292, 328, 448, 511, 512, 574, 584, 656, 896, 1022, 1024, 1148, 1168, 1312, 1792, 2044, 2296, 2336, 2624, 2993, 3584, 4088, 4592, 4672, 5248, 5986, 7168, 8176, 9184, 9344, 10496, 11972, 16352, 18368, 18688, 20951, 20992, 23944, 32704, 36736, 37376, 41902, 41984, 47888, 65408, 73472, 74752, 83804, 95776, 130816, 146944, 167608, 191552, 261632, 293888, 335216, 383104, 523264, 670432, 766208, 1340864, 1532416, 2681728, 3064832, 5363456, 10726912, 21453824]

約数ペア:

[(1, 21453824), (2, 10726912), (4, 5363456), (7, 3064832), (8, 2681728), (14, 1532416), (16, 1340864), (28, 766208), (32, 670432), (41, 523264), (56, 383104), (64, 335216), (73, 293888), (82, 261632), (112, 191552), (128, 167608), (146, 146944), (164, 130816), (224, 95776), (256, 83804), (287, 74752), (292, 73472), (328, 65408), (448, 47888), (511, 41984), (512, 41902), (574, 37376), (584, 36736), (656, 32704), (896, 23944), (1022, 20992), (1024, 20951), (1148, 18688), (1168, 18368), (1312, 16352), (1792, 11972), (2044, 10496), (2296, 9344), (2336, 9184), (2624, 8176), (2993, 7168), (3584, 5986), (4088, 5248), (4592, 4672)]