20287659

素因数分解:

$3^1\times 7^1\times {\mathrm{677}}^1\times {\mathrm{1427}}^1$

素因数の和:2114

約数の個数: 16

約数和(自身を含む): 30981888

約数和(自身を除く): 10694229

約数列:

[1, 3, 7, 21, 677, 1427, 2031, 4281, 4739, 9989, 14217, 29967, 966079, 2898237, 6762553, 20287659]

約数ペア:

[(1, 20287659), (3, 6762553), (7, 2898237), (21, 966079), (677, 29967), (1427, 14217), (2031, 9989), (4281, 4739)]