21254958

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^2\times {\mathrm{3271}}^1$

素因数の和:3317

約数の個数: 36

約数和(自身を含む): 48618648

約数和(自身を除く): 27363690

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342, 361, 722, 1083, 2166, 3249, 3271, 6498, 6542, 9813, 19626, 29439, 58878, 62149, 124298, 186447, 372894, 559341, 1118682, 1180831, 2361662, 3542493, 7084986, 10627479, 21254958]

約数ペア:

[(1, 21254958), (2, 10627479), (3, 7084986), (6, 3542493), (9, 2361662), (18, 1180831), (19, 1118682), (38, 559341), (57, 372894), (114, 186447), (171, 124298), (342, 62149), (361, 58878), (722, 29439), (1083, 19626), (2166, 9813), (3249, 6542), (3271, 6498)]