20791377

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{40529}}^1$

素因数の和:40557

約数の個数: 16

約数和(自身を含む): 32424000

約数和(自身を除く): 11632623

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 40529, 121587, 364761, 770051, 1094283, 2310153, 6930459, 20791377]

約数ペア:

[(1, 20791377), (3, 6930459), (9, 2310153), (19, 1094283), (27, 770051), (57, 364761), (171, 121587), (513, 40529)]