21485373

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{11243}}^1$

素因数の和:11273

約数の個数: 24

約数和(自身を含む): 35890848

約数和(自身を除く): 14405475

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 11243, 33729, 78701, 146159, 236103, 438477, 550907, 1023113, 1652721, 3069339, 7161791, 21485373]

約数ペア:

[(1, 21485373), (3, 7161791), (7, 3069339), (13, 1652721), (21, 1023113), (39, 550907), (49, 438477), (91, 236103), (147, 146159), (273, 78701), (637, 33729), (1911, 11243)]