13201221

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{887}}^1$

素因数の和:953

約数の個数: 24

約数和(自身を含む): 19841472

約数和(自身を除く): 6640251

約数列:

[1, 3, 11, 33, 41, 121, 123, 363, 451, 887, 1353, 2661, 4961, 9757, 14883, 29271, 36367, 107327, 109101, 321981, 400037, 1200111, 4400407, 13201221]

約数ペア:

[(1, 13201221), (3, 4400407), (11, 1200111), (33, 400037), (41, 321981), (121, 109101), (123, 107327), (363, 36367), (451, 29271), (887, 14883), (1353, 9757), (2661, 4961)]