21889329

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13537}}^1$

素因数の和:13565

約数の個数: 24

約数和(自身を含む): 37039968

約数和(自身を除く): 15150639

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 13537, 40611, 94759, 148907, 284277, 446721, 663313, 1042349, 1989939, 3127047, 7296443, 21889329]

約数ペア:

[(1, 21889329), (3, 7296443), (7, 3127047), (11, 1989939), (21, 1042349), (33, 663313), (49, 446721), (77, 284277), (147, 148907), (231, 94759), (539, 40611), (1617, 13537)]