18671607

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{281}}^1$

素因数の和:420

約数の個数: 32

約数和(自身を含む): 29237760

約数和(自身を除く): 10566153

約数列:

[1, 3, 9, 23, 27, 69, 107, 207, 281, 321, 621, 843, 963, 2461, 2529, 2889, 6463, 7383, 7587, 19389, 22149, 30067, 58167, 66447, 90201, 174501, 270603, 691541, 811809, 2074623, 6223869, 18671607]

約数ペア:

[(1, 18671607), (3, 6223869), (9, 2074623), (23, 811809), (27, 691541), (69, 270603), (107, 174501), (207, 90201), (281, 66447), (321, 58167), (621, 30067), (843, 22149), (963, 19389), (2461, 7587), (2529, 7383), (2889, 6463)]