20909367

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{40759}}^1$

素因数の和:40787

約数の個数: 16

約数和(自身を含む): 32608000

約数和(自身を除く): 11698633

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 40759, 122277, 366831, 774421, 1100493, 2323263, 6969789, 20909367]

約数ペア:

[(1, 20909367), (3, 6969789), (9, 2323263), (19, 1100493), (27, 774421), (57, 366831), (171, 122277), (513, 40759)]