21279744

素因数分解:

$2^{10}\times 3^2\times {\mathrm{2309}}^1$

素因数の和:2335

約数の個数: 66

約数和(自身を含む): 61471410

約数和(自身を除く): 40191666

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, 1536, 2304, 2309, 3072, 4608, 4618, 6927, 9216, 9236, 13854, 18472, 20781, 27708, 36944, 41562, 55416, 73888, 83124, 110832, 147776, 166248, 221664, 295552, 332496, 443328, 591104, 664992, 886656, 1182208, 1329984, 1773312, 2364416, 2659968, 3546624, 5319936, 7093248, 10639872, 21279744]

約数ペア:

[(1, 21279744), (2, 10639872), (3, 7093248), (4, 5319936), (6, 3546624), (8, 2659968), (9, 2364416), (12, 1773312), (16, 1329984), (18, 1182208), (24, 886656), (32, 664992), (36, 591104), (48, 443328), (64, 332496), (72, 295552), (96, 221664), (128, 166248), (144, 147776), (192, 110832), (256, 83124), (288, 73888), (384, 55416), (512, 41562), (576, 36944), (768, 27708), (1024, 20781), (1152, 18472), (1536, 13854), (2304, 9236), (2309, 9216), (3072, 6927), (4608, 4618)]