20484405

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{26777}}^1$

素因数の和:26805

約数の個数: 24

約数和(自身を含む): 37596312

約数和(自身を除く): 17111907

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 26777, 80331, 133885, 240993, 401655, 455209, 1204965, 1365627, 2276045, 4096881, 6828135, 20484405]

約数ペア:

[(1, 20484405), (3, 6828135), (5, 4096881), (9, 2276045), (15, 1365627), (17, 1204965), (45, 455209), (51, 401655), (85, 240993), (153, 133885), (255, 80331), (765, 26777)]