18705005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{1709}}^1$

素因数の和:1924

約数の個数: 16

約数和(自身を含む): 24624000

約数和(自身を除く): 5918995

約数列:

[1, 5, 11, 55, 199, 995, 1709, 2189, 8545, 10945, 18799, 93995, 340091, 1700455, 3741001, 18705005]

約数ペア:

[(1, 18705005), (5, 3741001), (11, 1700455), (55, 340091), (199, 93995), (995, 18799), (1709, 10945), (2189, 8545)]