18919364

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{2203}}^1$

素因数の和:2339

約数の個数: 24

約数和(自身を含む): 35175840

約数和(自身を除く): 16256476

約数列:

[1, 2, 4, 19, 38, 76, 113, 226, 452, 2147, 2203, 4294, 4406, 8588, 8812, 41857, 83714, 167428, 248939, 497878, 995756, 4729841, 9459682, 18919364]

約数ペア:

[(1, 18919364), (2, 9459682), (4, 4729841), (19, 995756), (38, 497878), (76, 248939), (113, 167428), (226, 83714), (452, 41857), (2147, 8812), (2203, 8588), (4294, 4406)]