81000051

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{457}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 121879296

約数和(自身を除く): 40879245

約数列:

[1, 3, 11, 33, 41, 123, 131, 393, 451, 457, 1353, 1371, 1441, 4323, 5027, 5371, 15081, 16113, 18737, 56211, 59081, 59867, 177243, 179601, 206107, 618321, 658537, 1975611, 2454547, 7363641, 27000017, 81000051]

約数ペア:

[(1, 81000051), (3, 27000017), (11, 7363641), (33, 2454547), (41, 1975611), (123, 658537), (131, 618321), (393, 206107), (451, 179601), (457, 177243), (1353, 59867), (1371, 59081), (1441, 56211), (4323, 18737), (5027, 16113), (5371, 15081)]