21821931

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{739}}^1$

素因数の和:955

約数の個数: 24

約数和(自身を含む): 33593040

約数和(自身を除く): 11771109

約数列:

[1, 3, 9, 17, 51, 153, 193, 579, 739, 1737, 2217, 3281, 6651, 9843, 12563, 29529, 37689, 113067, 142627, 427881, 1283643, 2424659, 7273977, 21821931]

約数ペア:

[(1, 21821931), (3, 7273977), (9, 2424659), (17, 1283643), (51, 427881), (153, 142627), (193, 113067), (579, 37689), (739, 29529), (1737, 12563), (2217, 9843), (3281, 6651)]