21004269

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{4451}}^1$

素因数の和:4489

約数の個数: 24

約数和(自身を含む): 33158496

約数和(自身を除く): 12154227

約数列:

[1, 3, 11, 13, 33, 39, 121, 143, 363, 429, 1573, 4451, 4719, 13353, 48961, 57863, 146883, 173589, 538571, 636493, 1615713, 1909479, 7001423, 21004269]

約数ペア:

[(1, 21004269), (3, 7001423), (11, 1909479), (13, 1615713), (33, 636493), (39, 538571), (121, 173589), (143, 146883), (363, 57863), (429, 48961), (1573, 13353), (4451, 4719)]