20554508

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{1427}}^1$

素因数の和:1721

約数の個数: 24

約数和(自身を含む): 38904432

約数和(自身を除く): 18349924

約数列:

[1, 2, 4, 13, 26, 52, 277, 554, 1108, 1427, 2854, 3601, 5708, 7202, 14404, 18551, 37102, 74204, 395279, 790558, 1581116, 5138627, 10277254, 20554508]

約数ペア:

[(1, 20554508), (2, 10277254), (4, 5138627), (13, 1581116), (26, 790558), (52, 395279), (277, 74204), (554, 37102), (1108, 18551), (1427, 14404), (2854, 7202), (3601, 5708)]