16686940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43913}}^1$

素因数の和:43941

約数の個数: 24

約数和(自身を含む): 36887760

約数和(自身を除く): 20200820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 43913, 87826, 175652, 219565, 439130, 834347, 878260, 1668694, 3337388, 4171735, 8343470, 16686940]

約数ペア:

[(1, 16686940), (2, 8343470), (4, 4171735), (5, 3337388), (10, 1668694), (19, 878260), (20, 834347), (38, 439130), (76, 219565), (95, 175652), (190, 87826), (380, 43913)]