21243849

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{1361}}^1$

素因数の和:1429

約数の個数: 24

約数和(自身を含む): 31881696

約数和(自身を除く): 10637847

約数列:

[1, 3, 11, 33, 43, 121, 129, 363, 473, 1361, 1419, 4083, 5203, 14971, 15609, 44913, 58523, 164681, 175569, 494043, 643753, 1931259, 7081283, 21243849]

約数ペア:

[(1, 21243849), (3, 7081283), (11, 1931259), (33, 643753), (43, 494043), (121, 175569), (129, 164681), (363, 58523), (473, 44913), (1361, 15609), (1419, 14971), (4083, 5203)]