20733713

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{269}}^1$

素因数の和:318

約数の個数: 36

約数和(自身を含む): 28656180

約数和(自身を除く): 7922467

約数列:

[1, 7, 11, 13, 49, 77, 91, 121, 143, 269, 539, 637, 847, 1001, 1573, 1883, 2959, 3497, 5929, 7007, 11011, 13181, 20713, 24479, 32549, 38467, 77077, 144991, 171353, 227843, 269269, 423137, 1594901, 1884883, 2961959, 20733713]

約数ペア:

[(1, 20733713), (7, 2961959), (11, 1884883), (13, 1594901), (49, 423137), (77, 269269), (91, 227843), (121, 171353), (143, 144991), (269, 77077), (539, 38467), (637, 32549), (847, 24479), (1001, 20713), (1573, 13181), (1883, 11011), (2959, 7007), (3497, 5929)]