21799991305

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{251}}^1\times {\mathrm{2129}}^1$

素因数の和:2625

約数の個数: 32

約数和(自身を含む): 27052704000

約数和(自身を除く): 5252712695

約数列:

[1, 5, 41, 199, 205, 251, 995, 1255, 2129, 8159, 10291, 10645, 40795, 49949, 51455, 87289, 249745, 423671, 436445, 534379, 2047909, 2118355, 2671895, 10239545, 17370511, 21909539, 86852555, 106341421, 109547695, 531707105, 4359998261, 21799991305]

約数ペア:

[(1, 21799991305), (5, 4359998261), (41, 531707105), (199, 109547695), (205, 106341421), (251, 86852555), (995, 21909539), (1255, 17370511), (2129, 10239545), (8159, 2671895), (10291, 2118355), (10645, 2047909), (40795, 534379), (49949, 436445), (51455, 423671), (87289, 249745)]