27978939

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{277}}^1$

素因数の和:361

約数の個数: 40

約数和(自身を含む): 44402160

約数和(自身を除く): 16423221

約数列:

[1, 3, 9, 27, 29, 43, 81, 87, 129, 261, 277, 387, 783, 831, 1161, 1247, 2349, 2493, 3483, 3741, 7479, 8033, 11223, 11911, 22437, 24099, 33669, 35733, 72297, 101007, 107199, 216891, 321597, 345419, 650673, 964791, 1036257, 3108771, 9326313, 27978939]

約数ペア:

[(1, 27978939), (3, 9326313), (9, 3108771), (27, 1036257), (29, 964791), (43, 650673), (81, 345419), (87, 321597), (129, 216891), (261, 107199), (277, 101007), (387, 72297), (783, 35733), (831, 33669), (1161, 24099), (1247, 22437), (2349, 11911), (2493, 11223), (3483, 8033), (3741, 7479)]