28281903

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{6653}}^1$

素因数の和:6778

約数の個数: 16

約数和(自身を含む): 40988640

約数和(自身を除く): 12706737

約数列:

[1, 3, 13, 39, 109, 327, 1417, 4251, 6653, 19959, 86489, 259467, 725177, 2175531, 9427301, 28281903]

約数ペア:

[(1, 28281903), (3, 9427301), (13, 2175531), (39, 725177), (109, 259467), (327, 86489), (1417, 19959), (4251, 6653)]