28250805

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1307}}^1$

素因数の和:1457

約数の個数: 32

約数和(自身を含む): 49724928

約数和(自身を除く): 21474123

約数列:

[1, 3, 5, 11, 15, 33, 55, 131, 165, 393, 655, 1307, 1441, 1965, 3921, 4323, 6535, 7205, 14377, 19605, 21615, 43131, 71885, 171217, 215655, 513651, 856085, 1883387, 2568255, 5650161, 9416935, 28250805]

約数ペア:

[(1, 28250805), (3, 9416935), (5, 5650161), (11, 2568255), (15, 1883387), (33, 856085), (55, 513651), (131, 215655), (165, 171217), (393, 71885), (655, 43131), (1307, 21615), (1441, 19605), (1965, 14377), (3921, 7205), (4323, 6535)]