20168295

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{479}}^1$

素因数の和:895

約数の個数: 32

約数和(自身を含む): 37048320

約数和(自身を除く): 16880025

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 401, 479, 1203, 1437, 2005, 2395, 2807, 3353, 6015, 7185, 8421, 10059, 14035, 16765, 42105, 50295, 192079, 576237, 960395, 1344553, 2881185, 4033659, 6722765, 20168295]

約数ペア:

[(1, 20168295), (3, 6722765), (5, 4033659), (7, 2881185), (15, 1344553), (21, 960395), (35, 576237), (105, 192079), (401, 50295), (479, 42105), (1203, 16765), (1437, 14035), (2005, 10059), (2395, 8421), (2807, 7185), (3353, 6015)]