28128243

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{379}}^1$

素因数の和:579

約数の個数: 32

約数和(自身を含む): 44432640

約数和(自身を除く): 16304397

約数列:

[1, 3, 11, 13, 33, 39, 143, 173, 379, 429, 519, 1137, 1903, 2249, 4169, 4927, 5709, 6747, 12507, 14781, 24739, 54197, 65567, 74217, 162591, 196701, 721237, 852371, 2163711, 2557113, 9376081, 28128243]

約数ペア:

[(1, 28128243), (3, 9376081), (11, 2557113), (13, 2163711), (33, 852371), (39, 721237), (143, 196701), (173, 162591), (379, 74217), (429, 65567), (519, 54197), (1137, 24739), (1903, 14781), (2249, 12507), (4169, 6747), (4927, 5709)]