21057512

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{16349}}^1$

素因数の和:16385

約数の個数: 32

約数和(自身を含む): 47088000

約数和(自身を除く): 26030488

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 161, 184, 322, 644, 1288, 16349, 32698, 65396, 114443, 130792, 228886, 376027, 457772, 752054, 915544, 1504108, 2632189, 3008216, 5264378, 10528756, 21057512]

約数ペア:

[(1, 21057512), (2, 10528756), (4, 5264378), (7, 3008216), (8, 2632189), (14, 1504108), (23, 915544), (28, 752054), (46, 457772), (56, 376027), (92, 228886), (161, 130792), (184, 114443), (322, 65396), (644, 32698), (1288, 16349)]