11121820

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{1549}}^1$

素因数の和:1917

約数の個数: 24

約数和(自身を含む): 23436000

約数和(自身を除く): 12314180

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1549, 1795, 3098, 3590, 6196, 7180, 7745, 15490, 30980, 556091, 1112182, 2224364, 2780455, 5560910, 11121820]

約数ペア:

[(1, 11121820), (2, 5560910), (4, 2780455), (5, 2224364), (10, 1112182), (20, 556091), (359, 30980), (718, 15490), (1436, 7745), (1549, 7180), (1795, 6196), (3098, 3590)]