28988253

素因数分解:

$3^3\times 7^2\times {\mathrm{21911}}^1$

素因数の和:21934

約数の個数: 24

約数和(自身を含む): 49959360

約数和(自身を除く): 20971107

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 21911, 65733, 153377, 197199, 460131, 591597, 1073639, 1380393, 3220917, 4141179, 9662751, 28988253]

約数ペア:

[(1, 28988253), (3, 9662751), (7, 4141179), (9, 3220917), (21, 1380393), (27, 1073639), (49, 591597), (63, 460131), (147, 197199), (189, 153377), (441, 65733), (1323, 21911)]