20109885

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1721}}^1$

素因数の和:1789

約数の個数: 32

約数和(自身を含む): 34715520

約数和(自身を除く): 14605635

約数列:

[1, 3, 5, 15, 19, 41, 57, 95, 123, 205, 285, 615, 779, 1721, 2337, 3895, 5163, 8605, 11685, 25815, 32699, 70561, 98097, 163495, 211683, 352805, 490485, 1058415, 1340659, 4021977, 6703295, 20109885]

約数ペア:

[(1, 20109885), (3, 6703295), (5, 4021977), (15, 1340659), (19, 1058415), (41, 490485), (57, 352805), (95, 211683), (123, 163495), (205, 98097), (285, 70561), (615, 32699), (779, 25815), (1721, 11685), (2337, 8605), (3895, 5163)]