209225817

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{691}}^1\times {\mathrm{1979}}^1$

素因数の和:2693

約数の個数: 24

約数和(自身を含む): 320617440

約数和(自身を除く): 111391623

約数列:

[1, 3, 9, 17, 51, 153, 691, 1979, 2073, 5937, 6219, 11747, 17811, 33643, 35241, 100929, 105723, 302787, 1367489, 4102467, 12307401, 23247313, 69741939, 209225817]

約数ペア:

[(1, 209225817), (3, 69741939), (9, 23247313), (17, 12307401), (51, 4102467), (153, 1367489), (691, 302787), (1979, 105723), (2073, 100929), (5937, 35241), (6219, 33643), (11747, 17811)]