18661437

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{491}}^1$

素因数の和:641

約数の個数: 24

約数和(自身を含む): 27937728

約数和(自身を除く): 9276291

約数列:

[1, 3, 9, 41, 103, 123, 309, 369, 491, 927, 1473, 4223, 4419, 12669, 20131, 38007, 50573, 60393, 151719, 181179, 455157, 2073493, 6220479, 18661437]

約数ペア:

[(1, 18661437), (3, 6220479), (9, 2073493), (41, 455157), (103, 181179), (123, 151719), (309, 60393), (369, 50573), (491, 38007), (927, 20131), (1473, 12669), (4223, 4419)]