20997363

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{14197}}^1$

素因数の和:14246

約数の個数: 16

約数和(自身を含む): 30667680

約数和(自身を除く): 9670317

約数列:

[1, 3, 17, 29, 51, 87, 493, 1479, 14197, 42591, 241349, 411713, 724047, 1235139, 6999121, 20997363]

約数ペア:

[(1, 20997363), (3, 6999121), (17, 1235139), (29, 724047), (51, 411713), (87, 241349), (493, 42591), (1479, 14197)]