18826641

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{271}}^1$

素因数の和:394

約数の個数: 32

約数和(自身を含む): 29245440

約数和(自身を除く): 10418799

約数列:

[1, 3, 9, 27, 31, 83, 93, 249, 271, 279, 747, 813, 837, 2241, 2439, 2573, 7317, 7719, 8401, 22493, 23157, 25203, 67479, 69471, 75609, 202437, 226827, 607311, 697283, 2091849, 6275547, 18826641]

約数ペア:

[(1, 18826641), (3, 6275547), (9, 2091849), (27, 697283), (31, 607311), (83, 226827), (93, 202437), (249, 75609), (271, 69471), (279, 67479), (747, 25203), (813, 23157), (837, 22493), (2241, 8401), (2439, 7719), (2573, 7317)]