20989033

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1301}}^1$

素因数の和:1404

約数の個数: 16

約数和(自身を含む): 24279696

約数和(自身を除く): 3290663

約数列:

[1, 13, 17, 73, 221, 949, 1241, 1301, 16133, 16913, 22117, 94973, 287521, 1234649, 1614541, 20989033]

約数ペア:

[(1, 20989033), (13, 1614541), (17, 1234649), (73, 287521), (221, 94973), (949, 22117), (1241, 16913), (1301, 16133)]