28251027

素因数分解:

$3^2\times 7^1\times {\mathrm{509}}^1\times {\mathrm{881}}^1$

素因数の和:1403

約数の個数: 24

約数和(自身を含む): 46781280

約数和(自身を除く): 18530253

約数列:

[1, 3, 7, 9, 21, 63, 509, 881, 1527, 2643, 3563, 4581, 6167, 7929, 10689, 18501, 32067, 55503, 448429, 1345287, 3139003, 4035861, 9417009, 28251027]

約数ペア:

[(1, 28251027), (3, 9417009), (7, 4035861), (9, 3139003), (21, 1345287), (63, 448429), (509, 55503), (881, 32067), (1527, 18501), (2643, 10689), (3563, 7929), (4581, 6167)]