21518256

素因数分解:

$2^4\times 3^1\times {\mathrm{67}}^1\times {\mathrm{6691}}^1$

素因数の和:6769

約数の個数: 40

約数和(自身を含む): 56426944

約数和(自身を除く): 34908688

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 67, 134, 201, 268, 402, 536, 804, 1072, 1608, 3216, 6691, 13382, 20073, 26764, 40146, 53528, 80292, 107056, 160584, 321168, 448297, 896594, 1344891, 1793188, 2689782, 3586376, 5379564, 7172752, 10759128, 21518256]

約数ペア:

[(1, 21518256), (2, 10759128), (3, 7172752), (4, 5379564), (6, 3586376), (8, 2689782), (12, 1793188), (16, 1344891), (24, 896594), (48, 448297), (67, 321168), (134, 160584), (201, 107056), (268, 80292), (402, 53528), (536, 40146), (804, 26764), (1072, 20073), (1608, 13382), (3216, 6691)]