21557799

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{42023}}^1$

素因数の和:42051

約数の個数: 16

約数和(自身を含む): 33619200

約数和(自身を除く): 12061401

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 42023, 126069, 378207, 798437, 1134621, 2395311, 7185933, 21557799]

約数ペア:

[(1, 21557799), (3, 7185933), (9, 2395311), (19, 1134621), (27, 798437), (57, 378207), (171, 126069), (513, 42023)]