20558811

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{75307}}^1$

素因数の和:75330

約数の個数: 16

約数和(自身を含む): 33737984

約数和(自身を除く): 13179173

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 75307, 225921, 527149, 978991, 1581447, 2936973, 6852937, 20558811]

約数ペア:

[(1, 20558811), (3, 6852937), (7, 2936973), (13, 1581447), (21, 978991), (39, 527149), (91, 225921), (273, 75307)]