20955579

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{2659}}^1$

素因数の和:2770

約数の個数: 16

約数和(自身を含む): 29111040

約数和(自身を除く): 8155461

約数列:

[1, 3, 37, 71, 111, 213, 2627, 2659, 7881, 7977, 98383, 188789, 295149, 566367, 6985193, 20955579]

約数ペア:

[(1, 20955579), (3, 6985193), (37, 566367), (71, 295149), (111, 188789), (213, 98383), (2627, 7977), (2659, 7881)]