21423518

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:284

約数の個数: 32

約数和(自身を含む): 34884000

約数和(自身を除く): 13460482

約数列:

[1, 2, 29, 37, 58, 67, 74, 134, 149, 298, 1073, 1943, 2146, 2479, 3886, 4321, 4958, 5513, 8642, 9983, 11026, 19966, 71891, 143782, 159877, 289507, 319754, 369371, 579014, 738742, 10711759, 21423518]

約数ペア:

[(1, 21423518), (2, 10711759), (29, 738742), (37, 579014), (58, 369371), (67, 319754), (74, 289507), (134, 159877), (149, 143782), (298, 71891), (1073, 19966), (1943, 11026), (2146, 9983), (2479, 8642), (3886, 5513), (4321, 4958)]