28708659

素因数分解:

$3^2\times 7^2\times {\mathrm{65099}}^1$

素因数の和:65119

約数の個数: 18

約数和(自身を含む): 48239100

約数和(自身を除く): 19530441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 65099, 195297, 455693, 585891, 1367079, 3189851, 4101237, 9569553, 28708659]

約数ペア:

[(1, 28708659), (3, 9569553), (7, 4101237), (9, 3189851), (21, 1367079), (49, 585891), (63, 455693), (147, 195297), (441, 65099)]