18983997

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{613}}^1$

素因数の和:690

約数の個数: 32

約数和(自身を含む): 29864960

約数和(自身を除く): 10880963

約数列:

[1, 3, 9, 27, 31, 37, 93, 111, 279, 333, 613, 837, 999, 1147, 1839, 3441, 5517, 10323, 16551, 19003, 22681, 30969, 57009, 68043, 171027, 204129, 513081, 612387, 703111, 2109333, 6327999, 18983997]

約数ペア:

[(1, 18983997), (3, 6327999), (9, 2109333), (27, 703111), (31, 612387), (37, 513081), (93, 204129), (111, 171027), (279, 68043), (333, 57009), (613, 30969), (837, 22681), (999, 19003), (1147, 16551), (1839, 10323), (3441, 5517)]