28225791

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{25919}}^1$

素因数の和:25947

約数の個数: 18

約数和(自身を含む): 44815680

約数和(自身を除く): 16589889

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 25919, 77757, 233271, 285109, 855327, 2565981, 3136199, 9408597, 28225791]

約数ペア:

[(1, 28225791), (3, 9408597), (9, 3136199), (11, 2565981), (33, 855327), (99, 285109), (121, 233271), (363, 77757), (1089, 25919)]