21215421889

素因数分解:

${\mathrm{71}}^1\times {\mathrm{401}}^1\times {\mathrm{709}}^1\times {\mathrm{1051}}^1$

素因数の和:2232

約数の個数: 16

約数和(自身を含む): 21618852480

約数和(自身を除く): 403430591

約数列:

[1, 71, 401, 709, 1051, 28471, 50339, 74621, 284309, 421451, 745159, 20185939, 29923021, 52906289, 298808759, 21215421889]

約数ペア:

[(1, 21215421889), (71, 298808759), (401, 52906289), (709, 29923021), (1051, 20185939), (28471, 745159), (50339, 421451), (74621, 284309)]