20652765

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{28099}}^1$

素因数の和:28121

約数の個数: 24

約数和(自身を含む): 38440800

約数和(自身を除く): 17788035

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 28099, 84297, 140495, 196693, 421485, 590079, 983465, 1376851, 2950395, 4130553, 6884255, 20652765]

約数ペア:

[(1, 20652765), (3, 6884255), (5, 4130553), (7, 2950395), (15, 1376851), (21, 983465), (35, 590079), (49, 421485), (105, 196693), (147, 140495), (245, 84297), (735, 28099)]