19757984

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1$

素因数の和:309

約数の個数: 48

約数和(自身を含む): 40515552

約数和(自身を除く): 20757568

約数列:

[1, 2, 4, 8, 16, 32, 43, 83, 86, 166, 172, 173, 332, 344, 346, 664, 688, 692, 1328, 1376, 1384, 2656, 2768, 3569, 5536, 7138, 7439, 14276, 14359, 14878, 28552, 28718, 29756, 57104, 57436, 59512, 114208, 114872, 119024, 229744, 238048, 459488, 617437, 1234874, 2469748, 4939496, 9878992, 19757984]

約数ペア:

[(1, 19757984), (2, 9878992), (4, 4939496), (8, 2469748), (16, 1234874), (32, 617437), (43, 459488), (83, 238048), (86, 229744), (166, 119024), (172, 114872), (173, 114208), (332, 59512), (344, 57436), (346, 57104), (664, 29756), (688, 28718), (692, 28552), (1328, 14878), (1376, 14359), (1384, 14276), (2656, 7439), (2768, 7138), (3569, 5536)]