20508748

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{2179}}^1$

素因数の和:2377

約数の個数: 24

約数和(自身を含む): 38882480

約数和(自身を除く): 18373732

約数列:

[1, 2, 4, 13, 26, 52, 181, 362, 724, 2179, 2353, 4358, 4706, 8716, 9412, 28327, 56654, 113308, 394399, 788798, 1577596, 5127187, 10254374, 20508748]

約数ペア:

[(1, 20508748), (2, 10254374), (4, 5127187), (13, 1577596), (26, 788798), (52, 394399), (181, 113308), (362, 56654), (724, 28327), (2179, 9412), (2353, 8716), (4358, 4706)]