21509202

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:136

約数の個数: 96

約数和(自身を含む): 53089344

約数和(自身を除く): 31580142

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 43, 53, 66, 78, 86, 106, 121, 129, 143, 159, 242, 258, 286, 318, 363, 429, 473, 559, 583, 689, 726, 858, 946, 1118, 1166, 1378, 1419, 1573, 1677, 1749, 2067, 2279, 2838, 3146, 3354, 3498, 4134, 4558, 4719, 5203, 6149, 6413, 6837, 7579, 9438, 10406, 12298, 12826, 13674, 15158, 15609, 18447, 19239, 22737, 25069, 29627, 31218, 36894, 38478, 45474, 50138, 59254, 67639, 75207, 83369, 88881, 135278, 150414, 166738, 177762, 202917, 250107, 275759, 325897, 405834, 500214, 551518, 651794, 827277, 977691, 1654554, 1955382, 3584867, 7169734, 10754601, 21509202]

約数ペア:

[(1, 21509202), (2, 10754601), (3, 7169734), (6, 3584867), (11, 1955382), (13, 1654554), (22, 977691), (26, 827277), (33, 651794), (39, 551518), (43, 500214), (53, 405834), (66, 325897), (78, 275759), (86, 250107), (106, 202917), (121, 177762), (129, 166738), (143, 150414), (159, 135278), (242, 88881), (258, 83369), (286, 75207), (318, 67639), (363, 59254), (429, 50138), (473, 45474), (559, 38478), (583, 36894), (689, 31218), (726, 29627), (858, 25069), (946, 22737), (1118, 19239), (1166, 18447), (1378, 15609), (1419, 15158), (1573, 13674), (1677, 12826), (1749, 12298), (2067, 10406), (2279, 9438), (2838, 7579), (3146, 6837), (3354, 6413), (3498, 6149), (4134, 5203), (4558, 4719)]