218363541

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{1663}}^1$

素因数の和:1873

約数の個数: 32

約数和(自身を含む): 333545472

約数和(自身を除く): 115181931

約数列:

[1, 3, 11, 23, 33, 69, 173, 253, 519, 759, 1663, 1903, 3979, 4989, 5709, 11937, 18293, 38249, 43769, 54879, 114747, 131307, 287699, 420739, 863097, 1262217, 3164689, 6617077, 9494067, 19851231, 72787847, 218363541]

約数ペア:

[(1, 218363541), (3, 72787847), (11, 19851231), (23, 9494067), (33, 6617077), (69, 3164689), (173, 1262217), (253, 863097), (519, 420739), (759, 287699), (1663, 131307), (1903, 114747), (3979, 54879), (4989, 43769), (5709, 38249), (11937, 18293)]