20409405

素因数分解:

$3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{5693}}^1$

素因数の和:5940

約数の個数: 16

約数和(自身を含む): 32797440

約数和(自身を除く): 12388035

約数列:

[1, 3, 5, 15, 239, 717, 1195, 3585, 5693, 17079, 28465, 85395, 1360627, 4081881, 6803135, 20409405]

約数ペア:

[(1, 20409405), (3, 6803135), (5, 4081881), (15, 1360627), (239, 85395), (717, 28465), (1195, 17079), (3585, 5693)]