21483865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{8933}}^1$

素因数の和:8988

約数の個数: 16

約数和(自身を含む): 28517328

約数和(自身を除く): 7033463

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 8933, 44665, 116129, 330521, 580645, 1652605, 4296773, 21483865]

約数ペア:

[(1, 21483865), (5, 4296773), (13, 1652605), (37, 580645), (65, 330521), (185, 116129), (481, 44665), (2405, 8933)]