206868543

素因数分解:

$3^1\times 7^2\times {\mathrm{661}}^1\times {\mathrm{2129}}^1$

素因数の和:2807

約数の個数: 24

約数和(自身を含む): 321493680

約数和(自身を除く): 114625137

約数列:

[1, 3, 7, 21, 49, 147, 661, 1983, 2129, 4627, 6387, 13881, 14903, 32389, 44709, 97167, 104321, 312963, 1407269, 4221807, 9850883, 29552649, 68956181, 206868543]

約数ペア:

[(1, 206868543), (3, 68956181), (7, 29552649), (21, 9850883), (49, 4221807), (147, 1407269), (661, 312963), (1983, 104321), (2129, 97167), (4627, 44709), (6387, 32389), (13881, 14903)]