28243257

素因数分解:

$3^1\times 7^2\times {\mathrm{229}}^1\times {\mathrm{839}}^1$

素因数の和:1085

約数の個数: 24

約数和(自身を含む): 44049600

約数和(自身を除く): 15806343

約数列:

[1, 3, 7, 21, 49, 147, 229, 687, 839, 1603, 2517, 4809, 5873, 11221, 17619, 33663, 41111, 123333, 192131, 576393, 1344917, 4034751, 9414419, 28243257]

約数ペア:

[(1, 28243257), (3, 9414419), (7, 4034751), (21, 1344917), (49, 576393), (147, 192131), (229, 123333), (687, 41111), (839, 33663), (1603, 17619), (2517, 11221), (4809, 5873)]