21312320

素因数分解:

$2^6\times 5^1\times {\mathrm{66601}}^1$

素因数の和:66618

約数の個数: 28

約数和(自身を含む): 50750724

約数和(自身を除く): 29438404

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 66601, 133202, 266404, 333005, 532808, 666010, 1065616, 1332020, 2131232, 2664040, 4262464, 5328080, 10656160, 21312320]

約数ペア:

[(1, 21312320), (2, 10656160), (4, 5328080), (5, 4262464), (8, 2664040), (10, 2131232), (16, 1332020), (20, 1065616), (32, 666010), (40, 532808), (64, 333005), (80, 266404), (160, 133202), (320, 66601)]