28002807

素因数分解:

$3^3\times 7^1\times {\mathrm{229}}^1\times {\mathrm{647}}^1$

素因数の和:892

約数の個数: 32

約数和(自身を含む): 47692800

約数和(自身を除く): 19689993

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 229, 647, 687, 1603, 1941, 2061, 4529, 4809, 5823, 6183, 13587, 14427, 17469, 40761, 43281, 122283, 148163, 444489, 1037141, 1333467, 3111423, 4000401, 9334269, 28002807]

約数ペア:

[(1, 28002807), (3, 9334269), (7, 4000401), (9, 3111423), (21, 1333467), (27, 1037141), (63, 444489), (189, 148163), (229, 122283), (647, 43281), (687, 40761), (1603, 17469), (1941, 14427), (2061, 13587), (4529, 6183), (4809, 5823)]