20659782

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{199}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 49190400

約数和(自身を除く): 28530618

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 121, 143, 199, 242, 286, 363, 398, 429, 597, 726, 858, 1194, 1331, 1573, 2189, 2587, 2662, 3146, 3993, 4378, 4719, 5174, 6567, 7761, 7986, 9438, 13134, 15522, 17303, 24079, 28457, 34606, 48158, 51909, 56914, 72237, 85371, 103818, 144474, 170742, 264869, 313027, 529738, 626054, 794607, 939081, 1589214, 1878162, 3443297, 6886594, 10329891, 20659782]

約数ペア:

[(1, 20659782), (2, 10329891), (3, 6886594), (6, 3443297), (11, 1878162), (13, 1589214), (22, 939081), (26, 794607), (33, 626054), (39, 529738), (66, 313027), (78, 264869), (121, 170742), (143, 144474), (199, 103818), (242, 85371), (286, 72237), (363, 56914), (398, 51909), (429, 48158), (597, 34606), (726, 28457), (858, 24079), (1194, 17303), (1331, 15522), (1573, 13134), (2189, 9438), (2587, 7986), (2662, 7761), (3146, 6567), (3993, 5174), (4378, 4719)]