18189865

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{827}}^1$

素因数の和:968

約数の個数: 16

約数和(自身を含む): 22534848

約数和(自身を除く): 4344983

約数列:

[1, 5, 53, 83, 265, 415, 827, 4135, 4399, 21995, 43831, 68641, 219155, 343205, 3637973, 18189865]

約数ペア:

[(1, 18189865), (5, 3637973), (53, 343205), (83, 219155), (265, 68641), (415, 43831), (827, 21995), (4135, 4399)]