20555787

素因数分解:

$3^1\times 7^1\times {\mathrm{653}}^1\times {\mathrm{1499}}^1$

素因数の和:2162

約数の個数: 16

約数和(自身を含む): 31392000

約数和(自身を除く): 10836213

約数列:

[1, 3, 7, 21, 653, 1499, 1959, 4497, 4571, 10493, 13713, 31479, 978847, 2936541, 6851929, 20555787]

約数ペア:

[(1, 20555787), (3, 6851929), (7, 2936541), (21, 978847), (653, 31479), (1499, 13713), (1959, 10493), (4497, 4571)]