19864221

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{10837}}^1$

素因数の和:10900

約数の個数: 16

約数和(自身を含む): 29132544

約数和(自身を除く): 9268323

約数列:

[1, 3, 13, 39, 47, 141, 611, 1833, 10837, 32511, 140881, 422643, 509339, 1528017, 6621407, 19864221]

約数ペア:

[(1, 19864221), (3, 6621407), (13, 1528017), (39, 509339), (47, 422643), (141, 140881), (611, 32511), (1833, 10837)]