21902573

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1361}}^1$

素因数の和:1409

約数の個数: 24

約数和(自身を含む): 28983360

約数和(自身を除く): 7080787

約数列:

[1, 7, 11, 19, 77, 121, 133, 209, 847, 1361, 1463, 2299, 9527, 14971, 16093, 25859, 104797, 164681, 181013, 284449, 1152767, 1991143, 3128939, 21902573]

約数ペア:

[(1, 21902573), (7, 3128939), (11, 1991143), (19, 1152767), (77, 284449), (121, 181013), (133, 164681), (209, 104797), (847, 25859), (1361, 16093), (1463, 14971), (2299, 9527)]