21555099

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{311}}^1$

素因数の和:488

約数の個数: 32

約数和(自身を含む): 34145280

約数和(自身を除く): 12590181

約数列:

[1, 3, 9, 17, 27, 51, 151, 153, 311, 453, 459, 933, 1359, 2567, 2799, 4077, 5287, 7701, 8397, 15861, 23103, 46961, 47583, 69309, 140883, 142749, 422649, 798337, 1267947, 2395011, 7185033, 21555099]

約数ペア:

[(1, 21555099), (3, 7185033), (9, 2395011), (17, 1267947), (27, 798337), (51, 422649), (151, 142749), (153, 140883), (311, 69309), (453, 47583), (459, 46961), (933, 23103), (1359, 15861), (2567, 8397), (2799, 7701), (4077, 5287)]