21283968

素因数分解:

$2^7\times 3^1\times {\mathrm{43}}^1\times {\mathrm{1289}}^1$

素因数の和:1349

約数の個数: 64

約数和(自身を含む): 57895200

約数和(自身を除く): 36611232

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 43, 48, 64, 86, 96, 128, 129, 172, 192, 258, 344, 384, 516, 688, 1032, 1289, 1376, 2064, 2578, 2752, 3867, 4128, 5156, 5504, 7734, 8256, 10312, 15468, 16512, 20624, 30936, 41248, 55427, 61872, 82496, 110854, 123744, 164992, 166281, 221708, 247488, 332562, 443416, 494976, 665124, 886832, 1330248, 1773664, 2660496, 3547328, 5320992, 7094656, 10641984, 21283968]

約数ペア:

[(1, 21283968), (2, 10641984), (3, 7094656), (4, 5320992), (6, 3547328), (8, 2660496), (12, 1773664), (16, 1330248), (24, 886832), (32, 665124), (43, 494976), (48, 443416), (64, 332562), (86, 247488), (96, 221708), (128, 166281), (129, 164992), (172, 123744), (192, 110854), (258, 82496), (344, 61872), (384, 55427), (516, 41248), (688, 30936), (1032, 20624), (1289, 16512), (1376, 15468), (2064, 10312), (2578, 8256), (2752, 7734), (3867, 5504), (4128, 5156)]