21297414

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{66973}}^1$

素因数の和:67031

約数の個数: 16

約数和(自身を含む): 43399152

約数和(自身を除く): 22101738

約数列:

[1, 2, 3, 6, 53, 106, 159, 318, 66973, 133946, 200919, 401838, 3549569, 7099138, 10648707, 21297414]

約数ペア:

[(1, 21297414), (2, 10648707), (3, 7099138), (6, 3549569), (53, 401838), (106, 200919), (159, 133946), (318, 66973)]