19992399

素因数分解:

$3^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{5503}}^1$

素因数の和:5686

約数の個数: 16

約数和(自身を含む): 30646272

約数和(自身を除く): 10653873

約数列:

[1, 3, 7, 21, 173, 519, 1211, 3633, 5503, 16509, 38521, 115563, 952019, 2856057, 6664133, 19992399]

約数ペア:

[(1, 19992399), (3, 6664133), (7, 2856057), (21, 952019), (173, 115563), (519, 38521), (1211, 16509), (3633, 5503)]